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<eadid countrycode="us" mainagencycode="DcWaGWG">ms2020</eadid>
<filedesc>
<titlestmt>

<titleproper encodinganalog="Title.titleproper">Preliminary Guide to The Thomas Hahn Chesapeake and Ohio Canal collection, <date>1939-1993</date></titleproper>
<author encodinganalog="Creator.author">Special Collections Research Center, The George Washington University</author>
</titlestmt>
<publicationstmt>
<publisher encodinganalog="Publisher">Special Collections Research Center, The Gelman Library, The George Washington University</publisher>
<date encodinganalog="Date.publication" type="publication" normal="2005">2005</date>
<address>
<addressline> 2130 H. St. NW, Washington, D.C. 20052</addressline>
 <addressline>Phone: 202-994-7549</addressline>
<addressline>Email: speccoll@gwu.edu</addressline>
</address>
</publicationstmt>
 </filedesc>
 <profiledesc>
<creation encodinganalog="Description.creation">Machine-readable finding aid derived from Re:discovery database program and converted into xml; Code template by Archives and Information Associates (http://archivesandinformation.com), Alexandria, Virginia 
. <date encodinganalog="Date.available" normal="2005">2005</date>
</creation>

<langusage>Finding aid written in <language encodinganalog="language">English</language></langusage>
</profiledesc>


</eadheader>
<frontmatter>
<titlepage>
<titleproper encodinganalog="title">Preliminary Guide to The Thomas Hahn Chesapeake and Ohio Canal collection, <date>1939-1993</date></titleproper>
<num>MS2020</num>
<publisher encodinganalog="publisher">Special Collections Research Center, The Gelman Library, The George Washington University</publisher>
<address>
<addressline>Washington, D.C.</addressline>
</address>
<list type="deflist">
<defitem>
<label>Processed by: </label>
<item>Special Collections Staff, <date>2006</date></item>
</defitem>
<defitem>
 <label>Encoded by: </label>
<item>Jennifer King, <date>2006</date></item>
 </defitem>
 </list><p>copyright 2005 The George Washington University. All rights reserved.</p>
</titlepage>
</frontmatter>
<archdesc level="collection" type="inventory" relatedencoding="DC">
<did id="d_summary">
<head>Descriptive Summary</head>
<origination label="Creator">
<persname>Hahn, Thomas F.</persname>
</origination>
<unittitle encodinganalog="Title" label="Title">The Thomas Hahn Chesapeake and Ohio Canal collection, <unitdate type="inclusive" normal="" encodinganalog="Coverage.temporal">1939-1993</unitdate></unittitle>
<unitid countrycode="us" repositorycode="DcWaGWG" encodinganalog="Source.collectionnumber" label="Catalog number">MS2020</unitid>
<physdesc> <extent encodinganalog="Format.extent" label="Extent">10 Linear feet (30 boxes)</extent></physdesc>
 <abstract encodinganalog="Abstract">Collection contains materials related to Thomas Hahn's involvement in the C&amp;O Canal Association, as well as other canals related to the C&amp;O, and canals in general.  A large part of the collection consists of photographic negatives, slides and prints of the C&amp;O Canal.  Most of these photographs, negatives, and slides relate to illustrations in publications that he authored or co-authored. Other items include reference material for his books, correspondence, and maps.</abstract>
 <repository encodinganalog="Source.repository" label="Repository">
<corpname>The George Washington University, 
                The Gelman Library, Special Collections Research Center</corpname>
                <address>
 <addressline><lb />2130 H. St. NW<lb /></addressline>
<addressline>Washington, D.C. 20052<lb /></addressline>
<addressline>Phone: 202-994-7549<lb /></addressline>
<addressline>Email: <extptr href="mailto:speccoll@gwu.edu" title="speccoll@gwu.edu"></extptr></addressline>
</address>
</repository>

<langmaterial label="Language of Materials">English</langmaterial>

</did>
<descgrp encodinganalog="Description.descgrp" type="admininfo">
<head>Information for Users</head>
<prefercite encodinganalog="Description.prefercite">
<head>Preferred citation</head>
<p>Thomas Hahn's Chesapeake and Ohio Canal collection, Special Collections Research Center, The George Washington University.</p>
</prefercite>
<accessrestrict encodinganalog="Rights.accessrestrict">
<head>Restrictions on Access</head>
<p>Some records may be restricted.</p>
</accessrestrict>
<acqinfo encodinganalog="541">
<head>Acquisition Information</head>
<p></p>
</acqinfo>
<userestrict encodinganalog="Rights.userestrict ">
<head>Restrictions on Use</head>
<p>Some material may be copyrighted or restricted. It is the patron's obligation to determine and satisfy copyright or other case restrictions when publishing or otherwise distributing materials found in the collections.</p>
</userestrict>
</descgrp>
<bioghist encodinganalog="Description.bioghist">
<head>Historical or Biographical Note</head>
<p>Thomas Hahn (1926- 2007) was a professional industrial archaeologist, a college professor and a bona fide Indian medicine man.  He was born in November 1926, in Topeka, Kansas.  After retiring from the Navy following a 28 year career, Hahn earned several degrees including a Masters degree in History and a PhD in Industrial Archeology.  He spoke five language and was closely connected with his Native American heritage and at one point in his life served as Chief of the Kansas Delawares Nation.</p>
<p>Hahn had a 28-year career in the Navy that spanned three wars, beginning in 1944 as a seaman second class and ended in retirement in 1972 with a captain's rank.  He wrote 30 volumes on the C&amp;O Canal for the National Park Service, as well as historical books, essays and brochures.  </p>
<p>He was considered one of the world's foremost expert on the C&amp;O Canal.  He was the field archaeologist on two major canal restoration projects; one in Havre de Grace, Md., the other in Alexandria, Va.  Hahn founded national and international canal societies as a way of sharing information.  He was president and founder of the 25-member Eastern West Virginia Archeology Society and served as president of the American Canal Association from 1972-97.   </p>
</bioghist>
<scopecontent encodinganalog="Description.scopecontent">
<head>Collection Scope and Content</head>
<p>This Collection contains materials related to Thomas Hahn's involvement in the C&amp;O Canal Association, as well as other canals related to the C&amp;O, and canals in general.  </p>
<p>A large part of the collection consists of photographic negatives, slides and prints of the C&amp;O Canal.  Most of these photographs, negatives, and slides relate to illustrations in publications that he authored or co-authored. Other items include reference material for his books, correspondence, and maps.</p>


<p>Please note: many of the images, especially those in boxes 21-25, are not in order and may require additional time to use for research.</p>
<p>The collection covers the years from 1939-1993 and is housed in 31 boxes, or approximately 10 linear feet.</p>
<p>
</p></scopecontent>
<arrangement encodinganalog="351a">
<head>Collection Organization</head>
<p>Organized in one series.</p>
</arrangement>

<controlaccess>
<head>Subject Terms</head>
<controlaccess><head>Individuals</head>
<persname encodinganalog="Subject.personalnames" rules="aacr2">Hahn, Thomas F.</persname>
</controlaccess>
 <controlaccess>
<head>Corporate Entities</head>
<corpname encodinganalog="Subject.corporatenames" rules="aacr2">Chesapeake &amp; Ohio Canal Association</corpname>
</controlaccess>
<controlaccess>
<head>Topics</head>
<subject encodinganalog="Subject" source="lcsh">Canals</subject>
</controlaccess>
<controlaccess>
<head>Geographic Locations</head>
<geogname encodinganalog="Coverage.spatial">Washington (D.C.)</geogname>
<geogname encodinganalog="Coverage.spatial">Alexandria (Va.)</geogname>
<geogname encodinganalog="Coverage.spatial">Havre de Grace (Md.)</geogname>
</controlaccess>
 </controlaccess>
<dsc type="combined">
<head>Detailed Description of the Records</head>

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<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Lock 58, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Lock 59, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Lock 60, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Lock 61, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Lock 62, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Lock 63, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Lock 64, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Lock 65, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Lock 66, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Lock 67, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Lock 68, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Lock 69, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Lock 70, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Lock 71, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Lock 72, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Lock 73, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Lock 74, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">3</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Lock 75, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 1 No. 1 March, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 1 No. 2 April, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 1 No. 3 May, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 1 No. 4 June, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 1 No. 5 November 5, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 2 No. 1 February 18, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 2 No. 2 April 30, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 2 No. 3 October 19, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 3 No. 1 February 9, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 3 No. 2 May 19, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 4 No. 1 October, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 4 No. 2 January, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": V. 6 No. 2 May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": Section of the Month; The Georgetown Canal Incline by Harold Skramstad, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": Section of the Month; Paw Paw Tunnel by Alan Franklin, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": Section of the Month, Georgetown Tidal Lock-Old Boat Incline by: Rae T. Lewis, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": Canal of the Month; The Jams River &amp; Kanawha Canal in Richmond by William E. Trout, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Along the Towpath, Level Walkers Report on Towpath Conditions, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Along the Towpath, Level Walker Directory, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": Resume of Level Walker &amp; Answers to Questionaire Regarding the Development of the Chesapeake and Ohio Canal National Historical Park, nd. Prepared by: Tom Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">4</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">"Along the Towpath": C&amp;O Canal National Historic Park, culverts, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">City map of Washington, DC during the time of the city canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Chesapeake &amp; Ohio Canal, Distances from the Lock at Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Diagram of Georgetown, showing C&amp;O Canal and Riverfront Development, <unitdate encodinganalog="Date.folder" type="inclusive">1830-1900</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">The Chesapeake and Ohio Canal and The Antebellum Commerce of Old Georgetown.  By Rogers W. Young -- January, <unitdate encodinganalog="Date.folder" type="inclusive">1940</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Georgetown Commerce Prior to, <unitdate encodinganalog="Date.folder" type="inclusive">1830</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">Canal in Georgetown area, Tidelock with boat, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Canal in Georgetown area; Godey Lime Kilns on Rock Creek, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Canal in Georgetown area; Lock #3, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Canal in Georgetown area: Lock #4, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Cover of Along the C&amp;O by Dave &amp; Martha Kelsey, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Along the C&amp;O Canal calendar.  Picture of Lock #23, Winter, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Along the C&amp;O Canal calendar. Picture of Monocacy Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Along the C&amp;O Canal calendar. Picture of Great Falls during Douglas Reunion Hike, 1974., <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Along the C&amp;O Canal calendar. Georgetown, Lock 4, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Along the C&amp;O calendar. Picture of Dam #2, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Approximate length of sections of C&amp;O Canal that will be Narrowed to 27'. April 7, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Photograph by Judge Richard A. Kennedy of John McDaniel's house on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Composite Lock Sketch, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Photocopy of map of Maryland and Delaware, by Johnson &amp; Ward.(Shows Civil War &amp; Defenses of Washington), <unitdate encodinganalog="Date.folder" type="inclusive">1860-1870</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Drawing of canal boat at Brunswick, from a calendar, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Xerox copy of Civil War engraving of Aqueduct of the Chesapeake &amp; Ohio Canal, at the mouth of the Monocacy, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Construction &amp; Maintenance of the C&amp;O Canal Dam No. 1 Little Falls, MD, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Historical Report Godey Lime Kilns, Washington DC, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Hydrologic capacity of the C&amp;O Canal between Great Falls and Pennyfield Lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">To the Presidents &amp; Directors of the C&amp;O Canal. March 5, <unitdate encodinganalog="Date.folder" type="inclusive">1829</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Blueprint of lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Document regarding the construction of the towing path along Potomac River, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Documents regarding culverts along the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Reconstruction work of C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">1940-1941</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">US Gov't Memorandum from Superintendent to Chief of Maintenance. June 20, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">Report on C&amp;O Canal to February 1, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Specification of the Chesapeake and Ohio Canal, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Specifications of a stone bridge, <unitdate encodinganalog="Date.folder" type="inclusive">1829</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Notecards regarding C&amp;O Canal, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Geology and Engineering, Chesapeake and Ohio Canal; Spring Gap to Cumberland by Geraldine H. and William E. Davies, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
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<unittitle encodinganalog="Title.folder">C&amp;O Canal Song: "Canal Saga", <unitdate encodinganalog="Date.folder" type="inclusive">1954</unitdate></unittitle>

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<container label="Box" type="Box">5</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Sketch of Lock #66 and its immediate vicinity, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Records of the Columbia Historical Society of Washington, DC, <unitdate encodinganalog="Date.folder" type="inclusive">1971-1972</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">In-service Field Trip, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Unit on the Chesapeake and Ohio Canal, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Old Canals Revival in the USA, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Map of Pittsburg and its environs, <unitdate encodinganalog="Date.folder" type="inclusive">1830</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Transcontinental Line; sketch showing the position of the Principal bench -- Marks Sandy Hook, NJ to Parkersburg, W.VA, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">46</container>
<unittitle encodinganalog="Title.folder">Miscellaneous documents, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Interview of Joe Sandblower by Ed Weseley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Interview of Shannon by Ed Weseley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Interview of Mary Schroeder by Ed Weseley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">Interview of Mr. Sisler by Ed Weseley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Oral history of Lloyd Shives, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">History of Martin Stevens by Tom Hahn, Nov. 12, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Interview of Clifford Swain by Tom Hahn, Dec., <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Recording between Clifford Swain, former boatman on the C&amp;O Canal and Ross Holland, historian, C&amp;O Canal National Monument, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Interview with John L. Swain by Martha Ross, Aug., <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Interview of Clifford Swain by Ranger Winehold, Sept., <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Interview with Maimie Swain by Martha Ross at Williamsport, MD. Sept. 1, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Interview of Mr. Little of Hancock by Ed Wesley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Interview of Mr. J.P. Mose by Tom Hahn at Hagerstown, MD. Jan 6, <unitdate encodinganalog="Date.folder" type="inclusive">1981</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Interview of Mr. J.P. Mose by Tom Hahn. Nov. 16, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Interview with Lavenia Waskey by Martha Ross at Frederick, MD. Sept. 5, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Interview with George W. "Hooper" Wolfe by Ed Wesley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Interview with Mr. Williams by Ed Wesley at C&amp;O CanalHeadquarters, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Interview of Mrs. Rosalie Younker by Martha Ross at Hancock, MD. May 27, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Interview of Frank Zimmerman by Tom Hahn at Hancock, MD. Oct. 3, <unitdate encodinganalog="Date.folder" type="inclusive">1977</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Oral interview with Clara Manning. May 26, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Oral interview with Jack Meyers by Ed Wesley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Time Was Interview with 18 Old-Timers by Elizabeth Kytle. May, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Oral Interview with Earl Kronk of Harper's Ferry by Ed Wesley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Interview with Cecil Jamison, age 72, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Interview with Mrs. Joe Higgins by Ed Wesley --  Sons Raymond &amp; Joe, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Interview of Louise Hebb of Sharpsburg, July 7, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Interview of Mr. Haugh of Oldtown, MD by Ed Wesley, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Oral interview with Bill Clipper by Ed Wesley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Interview of Roy Gray and others who worked on the canal in its operating days. Interview conducted by William Clark. July 29, <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">Interview with Pat Boyer, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal HQ Tape #49, Family Reunion Day. Oral History of Tom Bissett. Oct. 27, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Oral interview with Roy (Ray) Bender by Ed Weseley, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Notes from a oral interview of Byron Bender. Sept. 10, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">YACC Interview with Mr. Bansoff. July 10, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Interview with Julius Apple by Martha Ross., <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Oral interview with Julius Apple of Berkeley Springs, WV. Interview conducted by Martha Ross. May 26, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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</c01>

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<did>
<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Assignment for Psychology 300 taught by Thomas Hahn, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal HQ Tape #48 Composite interview of various tapes, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">YACC Interview with Mr. Brandt of Williamsport. July 17, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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</c01>

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<container label="Box" type="Box">6</container>
<container label="Folder" type="Folder">40</container>
<unittitle encodinganalog="Title.folder">Correspondence from Joseph Rodenick to Tom Hahn, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Letter from Henry Richards, August, <unitdate encodinganalog="Date.folder" type="inclusive">1829</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Letter from James Forman of Boating of Flour &amp; C. August 7, <unitdate encodinganalog="Date.folder" type="inclusive">1834</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Letter from Charles Fisk to unknown. June 2, <unitdate encodinganalog="Date.folder" type="inclusive">1848</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">Letter from Edgar W. Young to Mr. C.H. Cross. September 14, <unitdate encodinganalog="Date.folder" type="inclusive">1938</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Letter from Cornelius W. Heine to Dr. John A Muscalus concerning to the C&amp;O Canal. April 25, <unitdate encodinganalog="Date.folder" type="inclusive">1963</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">Letter from William Johnson to Tom Hahn. May 3, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Letter from Charles Mathias, J. Glenn Beall, Jr. Gilbert Gude to Mr. George Hartzog. October 6, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Letter from Lavenia Waskey to Thomas Hahn. November, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Letter from Lorenia Waskey to Tom Hahn. January 11, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Letter from Clifford C. Swain to Tom Hahn regarding the C&amp;O near Hagerstown, MD. April 21, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Correspondence from Joseph Prentice. United States Department of the Interior to Superintendent of C&amp;O Canal. July 3, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Letter from Joseph R. Prentice of the United States Department of the Interior to Superintendent of the C&amp;O Canal. July 17, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Correspondence to Mr. Roger W. Squires dated September 23, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Letter from John M Lamb to "Carroll" March 10, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Letter from William E. Trout III to Willard H. Duetting June 6, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Letter from Lucia J. Dunham to Thomas F. Hahn. September 24, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Letter from Donald Ray Barnes to Thomas F.  Hahn November 6, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Three letters from "Sam" to Thomas F. Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Letter from L.S. Baier to Thomas F. Hahn February 16, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Letter from Jim Wilson of the Steamship Historical Society Of America to Thomas F. Hahn. March 28, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Correspondence between Mrs. Vera Saunders and Thomas Hahn. October 1 &amp; October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1977</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Letter from Jean Libby to Thomas F. Hahn. August 12, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">3 Letters from Lester Rackey to Thomas F. Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Letter from Geo. W. Hooper Wolfe to Thomas F. Hahn. March 17, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Letter from Charles L. Shoup to Thomas F. Hahn. April 2, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Correspondence from Lester Racker to Thomas F. Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">1980-1981</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Letter from Lester Racky to Thomas F. Hahn October 16, <unitdate encodinganalog="Date.folder" type="inclusive">1980</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Letter from Emily to Thomas F. Hahn October 31, <unitdate encodinganalog="Date.folder" type="inclusive">1980</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Letter to Thomas F. Hahn from Chalmers M. Roberts September 26, <unitdate encodinganalog="Date.folder" type="inclusive">1981</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">Two correspondences from Frederic Gutheim to Thomas F. Hahn. February, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">Letter from Mrs. Lee H. Hough to Thomas F. Hahn April, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Correspondence from Mrs. Lillian Langdon to Thomas F Hahn regarding C&amp;O Canal. July 25, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Letters from Emily to Thomas F Hahn regarding canal prints., <unitdate encodinganalog="Date.folder" type="inclusive">1978-1983</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Letter from Lester to Thomas F Hahn. February 17, <unitdate encodinganalog="Date.folder" type="inclusive">1984</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Letter from Maxine P. Hanberry to Thomas F Hahn July 14, <unitdate encodinganalog="Date.folder" type="inclusive">1984</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Letter from Richard Stanton to Thomas F Hahn August 13, <unitdate encodinganalog="Date.folder" type="inclusive">1984</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Letter from MV Batten to Thomas F Hahn November 19, <unitdate encodinganalog="Date.folder" type="inclusive">1985</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">Correspondence between Thomas F Hahn and Elizabeth Kytle regarding Thomas F Hahn's book., <unitdate encodinganalog="Date.folder" type="inclusive">1986</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">Letter from Lester to Thomas F Hahn. June, <unitdate encodinganalog="Date.folder" type="inclusive">1986</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">40</container>
<unittitle encodinganalog="Title.folder">Letter from William J. Bray, Jr. to the American Canal July 17, <unitdate encodinganalog="Date.folder" type="inclusive">1989</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">41</container>
<unittitle encodinganalog="Title.folder">Correspondence from W. Edward News to Thomas F Hahn regarding Lock #70. May 9, <unitdate encodinganalog="Date.folder" type="inclusive">1991</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">42</container>
<unittitle encodinganalog="Title.folder">Letter from W.E. Trout III. November 2, <unitdate encodinganalog="Date.folder" type="inclusive">1992</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">43</container>
<unittitle encodinganalog="Title.folder">Letter from Bruce Peeling to Thomas F Hahn January 11, <unitdate encodinganalog="Date.folder" type="inclusive">1993</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">44</container>
<unittitle encodinganalog="Title.folder">Letter from Mary to Joe. August 31, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">45</container>
<unittitle encodinganalog="Title.folder">Letters from Lester to Thomas F Hahn included are pictures of the canal in Georgetown, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">46</container>
<unittitle encodinganalog="Title.folder">Miscellaneous letters to Thomas F Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">47</container>
<unittitle encodinganalog="Title.folder">Letter from Mrs. Davis V Frozier to Thomas F Hahn. April 3, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">7</container>
<container label="Folder" type="Folder">48</container>
<unittitle encodinganalog="Title.folder">Correspondence with Samuel Davis &amp; family, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
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<unittitle encodinganalog="Title.folder">Orville Crowder's Notes on the C&amp;O Canal, donated by Thomas Hahn. Sections 1-8, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
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<unittitle encodinganalog="Title.folder">United States Department of the Interior, National Park Service Historic Structures Report Part 1, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">History and Legislation of C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Courtcase: Francis Cooper vs. C&amp;O Canal Co. Jan 18, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Flood, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">New York State Department of Transportation. Barge Canal System &amp; Connecting Waterways, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<did>
<container label="Box" type="Box">8</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Various landscape postcards of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
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<unittitle encodinganalog="Title.folder">Narrative of C&amp;O Canal and Boatman, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Manuscript of the book, "The Log of the good Ship Joruva". A Tale of the Towpath by R.E. Wagstaff, W.D. McNair, W.S. Dotwiler, <unitdate encodinganalog="Date.folder" type="inclusive">1923</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Georgetown Outlet Incline, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">8</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">The Chesapeake &amp; Ohio Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
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<unittitle encodinganalog="Title.folder">C&amp;O Canal Seal &amp; Medal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
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<unittitle encodinganalog="Title.folder">C&amp;O Canal By-Laws, Rules, and Regulations. April 1, <unitdate encodinganalog="Date.folder" type="inclusive">1851</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">General Laws 51st Council, <unitdate encodinganalog="Date.folder" type="inclusive">1853</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">General Summary of C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal,  Great Falls, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Lock Schematic, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Blueprint of C&amp;O Canal Company Steam Yacht "Maryland", <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Blue prints of Typical Canal Freight Barge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
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<unittitle encodinganalog="Title.folder">Boats &amp; Barges of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
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<unittitle encodinganalog="Title.folder">Blue prints of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Blue prints of a canal boat on the C&amp;O, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Blue prints of a canal boat on the C&amp;O, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Blue prints of a C&amp;O Canal Barge. Dated Feb. 22, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Restoration Project, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Lock-Keepers and Boatmen, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal list of officers and rates of toll. April 1, <unitdate encodinganalog="Date.folder" type="inclusive">1851</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Violett's Lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Dam #2, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Former maintenance employees of receivers of C&amp;O Canal Company taken over by the National Capital Parks Effective Nov. 1, <unitdate encodinganalog="Date.folder" type="inclusive">1938</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">1979 Hike Reunion Song, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal, National Historic Park. Great Falls, MD. Development Concept Plan, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Hiker's Guide to the C&amp;O Canal. Compiled by Grant Conway. April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Blueprints of the C&amp;O Canal Projects, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Canals and the Navigable Riveres of the Canada, <unitdate encodinganalog="Date.folder" type="inclusive">1905</unitdate></unittitle>

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<container label="Box" type="Box">9</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">State of New York, Dept. of Public Works. Official map, Showing barge canal system and connecting waterways., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">The Hutton Papers, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">10</container>
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<unittitle encodinganalog="Title.folder">Uleuerton, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
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<unittitle encodinganalog="Title.folder">"Coal From Cumberland", Scharf, 1435, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">"The Discovery of Gold at Great Falls, MD 1861" by Edgar T. Ingalls, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
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<unittitle encodinganalog="Title.folder">Potomac River Project, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">The Chesapeake and Ohio Canal: It's Relationship to the Civil War by Dr. Richard Mertz, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Duvall Foundry, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Seal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Supreme Court of the United States Letters from Justice William Douglas. February 5, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Documenting the Lock Gates and Structure at Lock 14 of the Illinois and Michigan Canal., <unitdate encodinganalog="Date.folder" type="inclusive">1984</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">"The Life and Work of Women on the C&amp;O Canal" by Mayris Fitzsimons, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">A list of culverts along the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Harlen Innau's introduction of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
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<unittitle encodinganalog="Title.folder">Characterestics of the Boatmen: 1891-1924 by Harlen Innau, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Guide to the Geology and Engineering of the C&amp;O Canal Seneca to Carderock, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal, Ft. Frederick to Williamsport Guide to the Engineering and Geology by G.H &amp; W.E Davies, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">The Toll Chart of1857, <unitdate encodinganalog="Date.folder" type="inclusive">1857</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Tickets for one adult for the Canal Clipper on the C&amp;O Canal., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Report on the Potomac River and its tributaries., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Condensed Mileage Chart, C&amp;O Canal Towpath, October - December, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Cumberland to Washington on the C&amp;O Towpath by Grant Conway. July -September, <unitdate encodinganalog="Date.folder" type="inclusive">1954</unitdate></unittitle>

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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">A Walk on the Wild Side, by Toby Thompson, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">A Tale of the C&amp;O Towpath. July 23, <unitdate encodinganalog="Date.folder" type="inclusive">1923</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Lock Elevations on the C&amp;O Canal from Rock Creek to Seneca Creek. April 19, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Life of John Louis Washington 1878-1965. Washington County Museum of Fine Arts. Hagerstown, Md. January, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">The Patowack Canal: America's greatest eighteenth century Engineering achievement, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">The C&amp;O Canal article, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Injunction-Judgement-Bankruptcy. A Legal History of the C&amp;O Canal Company by William E. Davie, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Characteristics of the Boatman  by Harlan Duncan, <unitdate encodinganalog="Date.folder" type="inclusive">1851-1889</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">Memories of the Old C&amp;O Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">Boats and Boatmen, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Canal Talks for various canals including the C&amp;O Canal, Erie Canal, and others., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">10</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Notes for Canal Slides. Refer to Box (slides), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Alexandria Gazette July 8, <unitdate encodinganalog="Date.folder" type="inclusive">1828</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">The Washington Intelligencer "Opening of the Canal" October 15, <unitdate encodinganalog="Date.folder" type="inclusive">1850</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Maryland Historical Magazine V. XLII No. 3 "A House Divided - The Conflict of Loyalties on the C&amp;O Canal" by Walter Sanderlin. September, <unitdate encodinganalog="Date.folder" type="inclusive">1947</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">National Geographic Magazine "Washington's Historic Georgetown". April, <unitdate encodinganalog="Date.folder" type="inclusive">1963</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">The Evening Star "C&amp;O Canal on British Television". February 19, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">The Blade-Times, caves Brunswick, Knoxville, Petersville, Points of Rocks. 58th year no. 4 . Brunswick, Md February 25, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">The Washington Post "Old Foundary Preserved for Georgetown Harbor" October 24, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">The Washington Star Camera Notes October 31, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">The Washington Post "Clippers Along the C&amp;O Canal" by Michael Kernan. August 6, <unitdate encodinganalog="Date.folder" type="inclusive">1977</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">American Canals, bulletin of the American Canal Society, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">The Washington Post, "An Anniversary Hike Among the Bluebells" April 12, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Weverton, Washington Company timeline. January 5, <unitdate encodinganalog="Date.folder" type="inclusive">1980</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">The Washington Post, "Sumbitch Is More Than Just a Word Upstream on the C&amp;O Canal Towpath". May 31, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">The Washington Post, "The Transition from Wilderness to Georgetown is a Subtle One". June 3, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">The Washington Post, "The Canal-Lovers: A Curator, a Scholar, and Two River Rats". June 2, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">The Tri-State Paper, "Canaler Remembers the Mules". September 12, <unitdate encodinganalog="Date.folder" type="inclusive">1988</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Article regarding the C&amp;O Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">The Washington Post, "An Interspecies Game of 'Mother May I' ", nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Newspaper Clipping Regarding the C&amp;O Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Clippings from American Canal, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Washington Canal Failure, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Virginia Cavalcade "Unsuccessful Entrepreneur of the Eighteenth Century" by John Ballendine, <unitdate encodinganalog="Date.folder" type="inclusive">1959</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Quarterly Journal of the Library of Congress "John Ballendine's Eighteenth-Century Map of Virginia" by Arthur G. Burton., <unitdate encodinganalog="Date.folder" type="inclusive">1964</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Book by Paul H. Douglas &amp; William K. Jones entitled Sandstone, Canals, and the Smithsonian, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Two articles regarding excursions and trips on the C&amp;O Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Two page article by George Rash "Daily Mail" managing Editor regarding Justice Douglas's role in establishing the C&amp;O National Park., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Pamphlet of Historic White's Ferry, connecting Montgomery County, Md. To Loudon County, VA. Nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Newspaper clipping &amp; related information on Goose Creek &amp; Little River Navigation Co. nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Washingtonian Magazine "The C&amp;O Canal: Disneyland or Muirland?" by Ann Cottrell Free, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">The Blade Times, "Childhood on the C&amp;O Canal" March 25, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">The Blade Times, "Childhood on the C&amp;O Canal" March 11, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">"Old Photographs Bring Back Memories of Canal Life to 87 year-old resident", <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Towline "Not Just Barges!" Winter, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Cumberland Times "C&amp;O Canal Hikers" April 30, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">The Sunday Sun "Reunion Along C&amp;O Attracts 550 Hikers" May 1, <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">The Washington Post "Re-watering of all 185 Miles of C&amp;O Canal is Proposed" April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1995</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">"Reunion Along Trail" May 1, <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">Baltimore Evening Sun "A lock-tender remembers the days Of the canal" November 23, <unitdate encodinganalog="Date.folder" type="inclusive">1981</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">The Washington Post "On a Barge on C&amp;O: Canal Rats Adrift Down Memory Lane" July 20, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">40</container>
<unittitle encodinganalog="Title.folder">Newspaper article on Thomas Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">41</container>
<unittitle encodinganalog="Title.folder">The Washington Post "Hikers Back Proposal for Footpath Linking Pittsburgh, Potomac Basin" April 28, <unitdate encodinganalog="Date.folder" type="inclusive">1964</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">11</container>
<container label="Folder" type="Folder">42</container>
<unittitle encodinganalog="Title.folder">The Washington Post "Justice Douglas Leads C&amp;O Canal Hike" May 8, 1960. "Douglas to Lead Reunion Hikers Down Towpath; Public Invited" May 2, 1961, <unitdate encodinganalog="Date.folder" type="inclusive">1960-1961</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">12</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">The C&amp;O Canal: A Physical History by John Miek September, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

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<container label="Box" type="Box">12</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">The Natural Cement Mills in the Upper Potomac River Valley by Thomas Hahn &amp; Emory Kemp, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">12</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">A interpretive planning guide for communities along scenic Byways. October, <unitdate encodinganalog="Date.folder" type="inclusive">1993</unitdate></unittitle>

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<container label="Box" type="Box">12</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Congress Bill (original), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Canal Songs, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Three diagrams of Freigh Barges, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Bringing life to the C&amp;O Canal by James Holechek, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">United States Department of the Interior Typical Canal Freight Barge blue print, scale 1/4., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Tentative Outline for C&amp;O Canal National Historical Park Historic Resource Study compiled by: Harlan Nrau, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">Georgetown Architecture: The Waterfront Potomac Lodge No. 5, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">The American Canal Guide included area: March '72, Sept. '74, Aug. '75, Nov. '75, July '79., <unitdate encodinganalog="Date.folder" type="inclusive">1972-1979</unitdate></unittitle>

</did>
</c01>

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<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">The C&amp;O and Antebellum Commerce of Old Georgetown January, <unitdate encodinganalog="Date.folder" type="inclusive">1940</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Stabilization Study - Little Falls Skirting Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Misc. maps, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Stars &amp; Stripes Cruise II, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Rumsey's Contribution to Internal Waterway Improvements, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Virginia Canals: A Reflection of Eighteenth-Century British Engineering Practice, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">The Rumsey Celebration, Celebrating the Two Hundredth Anniversary  of Jones Rumnsy's, <unitdate encodinganalog="Date.folder" type="inclusive">1987</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Life on The C&amp;O Canal 1859 edited by: Ella Clark &amp; Thomas F. Hahn, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">US Dept. of Transportation Bicentennial Catalog of Transportation Progress. October, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">2 cardboard signs "C&amp;O Canal" "1828-1924", <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Canal Talks "Introduction", <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">American Canal Society, November 6, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">13</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">150th Anniversary Medal of the opening of The Erie Canal, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">The Towline "A Marvel in its Day: The Georgetown Incline", nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">The Towline "Coxey's Army and the C&amp;O Canal", <unitdate encodinganalog="Date.folder" type="inclusive">1977</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">The Towline "What's in a Seal", <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">Biography &amp; picture of W. Bollman bridge, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Picture of Great Falls (photocopy), nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">Photography from Herman &amp; Stacia Miller collection photocopy of two mules stake, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Pictoral quiz printed by National Park Service, Lock #67 Shown, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Photocopy from National Park Service of Cumberland, MD, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: Now Part of History October 11, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Color 2 page spread of a painting from the Library of Congress, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Building of George Washington's Monument, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">The Towline "C&amp;O Canal National Historical Park" V. 7 No. 1 Spring, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Rport of John Mason to the Secretary of the Treasury January 20, <unitdate encodinganalog="Date.folder" type="inclusive">1858</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">The Lock Estiamte of the Cost to finish the Antietam, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">"George Washington's Mountain Climbing Canal Plan is Revived" newspaper, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Hand-drawing around Lock #36, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">A Historical Memorabilla by George "Hooper" Wolfe Emphasis on the Justice Douglas C&amp;O Canal National Park, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Transportation to the Seaboard: The Central Roude from The Mississippi River to the Atlantic Ocean, by the Ohio, Kanawha and James Rivers, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Blueprint of the Stored Winch House at Dam No. 4, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal boats and captains after, <unitdate encodinganalog="Date.folder" type="inclusive">1892</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Miscellaneous hand-written notes, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">American Canal Society, Canal Boat Construction Index, <unitdate encodinganalog="Date.folder" type="inclusive">1993</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">General Services Administration, order for copies of documents issued to vessels., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Two blue-prints of C&amp;O Canal boats, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Lift Locks, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">The General Survey, physical study of C&amp;O Canal, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Level Walker Reports, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Check-list of birds of the District of Columbia region, <unitdate encodinganalog="Date.folder" type="inclusive">1966-1969</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Hike attendees name and addresses, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">1976 hike map, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">Laying the corner-stone of one of the Eastern Locks of the C&amp;O Canal. July 4, <unitdate encodinganalog="Date.folder" type="inclusive">1829</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Article from National park &amp; Conservation Magazine. The Abner Cloud House the oldest original building on the C&amp;O Canal. May, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Elimination of Washington City Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Trade on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Tourist &amp; Travel Maps, V. 9 No. 3 March, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Names of canal lock keepers, <unitdate encodinganalog="Date.folder"
type="inclusive">undated</unitdate></unittitle><note encodinganalog="Description.noteF"><p>Please note: the document in this file is a list of the boats.</p></note> 
</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">14</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Physical inventory of certain visible historic features on C&amp;O Canal from Seneca to Cumberland, MD. August, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Report of Captain W.M.G. McNeill on the condition of the C&amp;O Canal, June, <unitdate encodinganalog="Date.folder" type="inclusive">1833</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Copy of a song Dan Reeder wrote regarding the C&amp;O Canal. March 1, <unitdate encodinganalog="Date.folder" type="inclusive">1989</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">US Engineers Office to President of the C&amp;O Canal Board. (photocopy) September 24, <unitdate encodinganalog="Date.folder" type="inclusive">1875</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">The Black Experience, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Rock Dams in the Upper Potomac by Horace P. Hobbs, Jr., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">United States Department of the Interior stationary with few remarks on it, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Document written by Bill Troud regarding Harper's Ferry. January 10, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Recommendations for the C&amp;O Canal from Thomas Hahn, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Poem in honor of Orville Crowder by Thomas Hahn, nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Arches along the C&amp;O Canal, photocopy of pictoral document, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Annual reports of internal improvement companies to the Board of Public Works. September 30, <unitdate encodinganalog="Date.folder" type="inclusive">1860</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">United States Government Memorandum from Chief of Maintenance to C&amp;O Superintendent. June 20, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">The photographs (photocopy) of Georgetown, DC along the C&amp;O Canal., dates vary, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Four black-white pictures (photocopies) of canal boats and Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">1900</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">The Current "1920's on the C&amp;O Canal" by Geraldine A. Nestingen., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Regulations/Rules of C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
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<unittitle encodinganalog="Title.folder">Pitfalls in oral history programs by Edward D Ives, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Photocopy of hand-written letter, <unitdate encodinganalog="Date.folder" type="inclusive">1866</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Alleghany Portage railroad slides, January 23, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">A Bibliography on Historic sites in stream beds prepared by the American Canal Society, July, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">General Laws. 51st Council, <unitdate encodinganalog="Date.folder" type="inclusive">1853</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Index of the major structures of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal, locks on the canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">A Beginner's Guide to Canoeing on the "Upper Potomac's" by John Seabury Thomson, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">The Black American Experience "Seminar Series for Interpreters National Capital Region National Park Service", <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">Supreme Court of the District of Columbia, United States Of America vs. Martin F. Marris, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Cabin John Bridge, C&amp;O Canal, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">C&amp;O Canal Eastern Section, Canals No. 6 Flat drawing by Wm. B. Acket January 18, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
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<unittitle encodinganalog="Title.folder">United States Department of the Interior, National Park Service. Memorandum to Mr. Gillen. January 19, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Miscellaneous documents relating to the C&amp;O Canal, nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Seminar Workshop program, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Diagram of Lock #35 and #36 of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">Suter's Tavern by Cornelius W. Heine. Chief, Public Use Branch. National Capitol Parks, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">Water colors of the early canal buildings, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">40</container>
<unittitle encodinganalog="Title.folder">Georgetown Canal inclined plane diagram, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">41</container>
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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">42</container>
<unittitle encodinganalog="Title.folder">Book concerning Canals in the United States and Canada, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">43</container>
<unittitle encodinganalog="Title.folder">Interpretive themes for the National Capital Region National Park Service January 12, <unitdate encodinganalog="Date.folder" type="inclusive">1983</unitdate></unittitle>

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<container label="Folder" type="Folder">44</container>
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<container label="Folder" type="Folder">45</container>
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<container label="Folder" type="Folder">46</container>
<unittitle encodinganalog="Title.folder">Appendix A: A Synthesic of the History of the Potomac River valley by: Walter S. Sanderlin, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">47</container>
<unittitle encodinganalog="Title.folder">Fort Lesley J. McNair on historical landmark, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">15</container>
<container label="Folder" type="Folder">48</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Company shareholder bonds. Denominations: $5, $10, $20. (copy), <unitdate encodinganalog="Date.folder" type="inclusive">1840</unitdate></unittitle>

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<container label="Folder" type="Folder">49</container>
<unittitle encodinganalog="Title.folder">Waterways World "America's Inland Waterways The C&amp;O Canal", nd., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Potomac River basin, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Green Ridge Hiking Trail, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Sketches of Stone Structures, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
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<unittitle encodinganalog="Title.folder">Sketch of Antietam Cement Works Kilns, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of Canal barge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">Sketch of Battle at Dam No. 4, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Round Top Cement Company, <unitdate encodinganalog="Date.folder" type="inclusive">1907</unitdate></unittitle>

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<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Sketch of Godey Lime Kilns, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Sketch of Alexandria Canal Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
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<unittitle encodinganalog="Title.folder">The last boat down the C&amp;O Canal Cumberland, MD., <unitdate encodinganalog="Date.folder" type="inclusive">1936</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">And the floods came!  March 17, <unitdate encodinganalog="Date.folder" type="inclusive">1936</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Lock 44 and Paw Paw Tunnel, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Cliff areas above Dam No. 5 and Four Locks, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Aqueduct of the Chesapeake and Ohio Canal, at the mouth of the Monocacy, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Gun Owner's Creed, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
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<unittitle encodinganalog="Title.folder">Sketch of Point of  Rocks Train Station, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Location of canal terminus in Cumberland, MD, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Salty Dog Saloon, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of building.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Berli, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Grant information, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Yesteryear on the canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Typical hard working couple who made the canal their life, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Bridge over the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">1850 ca.</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Cumberland loading wharf, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">View from the C&amp;O Canal basin, Cumberland, MD, <unitdate encodinganalog="Date.folder" type="inclusive">1910 ca.</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of C&amp;O Canal Tunnel at Paw Paw., <unitdate encodinganalog="Date.folder" type="inclusive">1963</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of a Dutch canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of an old English lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Close-up of stonework, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of Williamsport aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of detail of Glen Echo Carousel, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of detail of Inlet Lock at Dam No. 4, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of Old Town, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of Sheperdstown, WV cement kilns and kiln openings, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of the Lockkeeper's House, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Sketch of a Chinese canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">47</container>
<unittitle encodinganalog="Title.folder">Illustration of the campaign on the Potomac-Unsuccessful attempt of the rebels to destroy dam No. 5 on the Upper Potomac near Williamsport, MD. December, <unitdate encodinganalog="Date.folder" type="inclusive">1861</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
<container label="Folder" type="Folder">48</container>
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<container label="Box" type="Box">16</container>
<container label="Folder" type="Folder">49</container>
<unittitle encodinganalog="Title.folder">Letter to Mr. Hutton about C&amp;O Canal.  September 1, <unitdate encodinganalog="Date.folder" type="inclusive">1894</unitdate></unittitle>

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<container label="Box" type="Box">16</container>
<container label="Folder" type="Folder">50</container>
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<container label="Box" type="Box">17</container>
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<container label="Box" type="Box">17</container>
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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">8</container>
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<container label="Box" type="Box">17</container>
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<container label="Box" type="Box">17</container>
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<container label="Box" type="Box">17</container>
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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Conversation with Cecil Jamison, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
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<unittitle encodinganalog="Title.folder">Paw Paw Tunnel, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">19</container>
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<container label="Box" type="Box">17</container>
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<unittitle encodinganalog="Title.folder">Repairs to Stone Dam across the Potomac River. Brookmont, MD, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Restoration of Hydraulic Structures, Fuse plug, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Flood conditions, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Survey of the Proposed C&amp;O Canal Parkway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Pictures and text of repairs to canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Help needed to bring back the canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">Canal barge boatman and wife, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Roundtop Kilns, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">33</container>
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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">A loaded freight boat on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Broadcast of W.M. Portman Club C&amp;O Canal club shows Justice Douglas, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Repair of feeder canal in vicinity of Lock 6, <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Plate showing property and levels at Feeder Gats, Lock No. 5, <unitdate encodinganalog="Date.folder" type="inclusive">1936</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">Plate of survey of the C&amp;O Canal form Stone No. 12 to Stone No. 1 of the Old Potomac Canal, Md., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">Property map of the C&amp;O Canal Company, updated to, <unitdate encodinganalog="Date.folder" type="inclusive">1895</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">41</container>
<unittitle encodinganalog="Title.folder">Plate of survey of the C&amp;O from the mix tract to stone no. 12, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">42</container>
<unittitle encodinganalog="Title.folder">Lock 11 to Lock 15, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">43</container>
<unittitle encodinganalog="Title.folder">House at Lock 37, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">17</container>
<container label="Folder" type="Folder">44</container>
<unittitle encodinganalog="Title.folder">Alexandria Canal, draft, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Maryland Historical Magazine vol. 81, no.4, article"The Tidewater End of the Chesapeake and Ohio Canal", William M. Franklin, Winter, <unitdate encodinganalog="Date.folder" type="inclusive">1986</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Springtime along the C&amp;O Canal, Kenneth G. Knouf, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Barry-Berlin-Brunswick: A Brief History, Dorothy U. Strathern, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">184 Miles of Adventure Hiker's Guide to the C&amp;O Canal, Baltimore Area Council-Boy Scouts of America, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Blue Ridge Voyages Volume Four An Illustrated Canoe Log of the Shenandoah River and its South Fork, Louis J. Matacia and Owen S. Cecil III, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Memories, Lavenia Waskey Brust, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">The Community of Four Locks, Mike Mastranggelo, <unitdate encodinganalog="Date.folder" type="inclusive">1987</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">A Collection of Maps of the Chesapeake and Ohio Canal, William Clague, <unitdate encodinganalog="Date.folder" type="inclusive">1977</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Maryland Historical Magazine vol. 55, no.2 June 1960 article "Life on the C&amp;O Canal: 1859", Ella E. Clark, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Administrative Policies for Natural Areas of the National Park System, NPS, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">National Geographic vol. 171, no.6  article "The Patowmack Canal: Waterway that Lead to the Constitution", Wilbur E. Garrett, June, <unitdate encodinganalog="Date.folder" type="inclusive">1987</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">National Geographic vol. 117, no.3  article "Waterway to Washington, the C&amp;O Canal", Jay Johnston, March, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Man and Nature in the National Parks: Reflections on Policy, F. Fraser Darling and Noel D. Eichhorn, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Hey-Ey-Ey, Lock!: Adventure on the Chesapeake &amp; Ohio Canal, Morris Fradin, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Chesapeake and Ohio Canal National Historic Park District of Columbia/Maryland General Plan.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1976</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Samantha Goes to Georgetown on the C&amp;O Canal, Barbara Winslow, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">The Chesapeake and Ohio Canal Celebrates 150 Years (1828-1978), <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">A Collection of Maps of the Chesapeake and Ohio Canal, Potomac Area American Youth Hostels, Inc., <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Georgetown Architecture The Waterfront Selections from the Historic American Buildings Survey Number 4, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
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<unittitle encodinganalog="Title.folder">Brookmont Unremembered Days, Grant Conway, October, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
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<unittitle encodinganalog="Title.folder">Organizing Archival Records: A Practical Method of Arrangement and Description for Small Archives, David W. Carmichael, <unitdate encodinganalog="Date.folder" type="inclusive">1993</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
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<unittitle encodinganalog="Title.folder">Pennsylvania Transportation History: A Supplement, William H. Shank, <unitdate encodinganalog="Date.folder" type="inclusive">1990</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
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<unittitle encodinganalog="Title.folder">C&amp;O Canal: The making of a Park, Barry Mackintosh, <unitdate encodinganalog="Date.folder" type="inclusive">1991</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
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<unittitle encodinganalog="Title.folder">Valleys of History vol. 4 no. 4 article "The Paw Paw Tunnel - Engineering Marvel of 1850" Autumn, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

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<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Georgetown Historic Waterfront, NPS, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

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<container label="Box" type="Box">18</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Erie Canal: History of the canal that made New York the Empire State from 1817 to the present, NY Council on the Arts for the New York Museums Collaborative, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

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<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">Harpers Ferry.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Dam.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Bridge over canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Bridge over canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Bridge over canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal boat on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Abe Roth Warehouse.  Pinesburg., <unitdate encodinganalog="Date.folder" type="inclusive">1890</unitdate></unittitle>

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<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Abe Roth Warehouse.  Pinesburg., <unitdate encodinganalog="Date.folder" type="inclusive">1890</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Abe Roth Warehouse.  Pinesburg., <unitdate encodinganalog="Date.folder" type="inclusive">1890</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Canal works on the canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal works on the canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal works on the canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">Three children at lock on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">Three children at lock on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Three children at lock on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Building on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Building on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Waterway.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Waterway.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">Waterway.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">Building and canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">40</container>
<unittitle encodinganalog="Title.folder">Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">43</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">44</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">45</container>
<unittitle encodinganalog="Title.folder">Building with porch.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">46</container>
<unittitle encodinganalog="Title.folder">Stone building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">47</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">48</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">49</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">50</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">51</container>
<unittitle encodinganalog="Title.folder">Canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">52</container>
<unittitle encodinganalog="Title.folder">Canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">53</container>
<unittitle encodinganalog="Title.folder">Canal lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">54</container>
<unittitle encodinganalog="Title.folder">Canal lock and bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">55</container>
<unittitle encodinganalog="Title.folder">Canal lock and bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">56</container>
<unittitle encodinganalog="Title.folder">Canal lock and bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">57</container>
<unittitle encodinganalog="Title.folder">Lock and sluice.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">58</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">59</container>
<unittitle encodinganalog="Title.folder">Construction.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">60</container>
<unittitle encodinganalog="Title.folder">Dam.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">61</container>
<unittitle encodinganalog="Title.folder">Dam.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">62</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">63</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">64</container>
<unittitle encodinganalog="Title.folder">Bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">65</container>
<unittitle encodinganalog="Title.folder">Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">66</container>
<unittitle encodinganalog="Title.folder">Lock and building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">67</container>
<unittitle encodinganalog="Title.folder">Lock and building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Folder" type="Folder">68</container>
<unittitle encodinganalog="Title.folder">Building and lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">69</container>
<unittitle encodinganalog="Title.folder">Obelisk in Georgetown.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">70</container>
<unittitle encodinganalog="Title.folder">Wooden bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
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<unittitle encodinganalog="Title.folder">Stone bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">72</container>
<unittitle encodinganalog="Title.folder">Building next to water.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">George Washington Canal, Great Falls, VA.  General view of lock number 2 looking downstream.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">150</container>
<unittitle encodinganalog="Title.folder">Photo post card.  View on front - 1. North in the C&amp;O Canal at Williamsport, MD.  2. When the boat broke thru the Aqueduct at Williamsport, MD, 1922. July 5, 1862 Crossing the Potomac River at Williamsport, MD, <unitdate encodinganalog="Date.folder" type="inclusive">1862-1922</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">151</container>
<unittitle encodinganalog="Title.folder">Looking north in the C&amp;O Canal, at the foot of the hill near the River View Cemetery Williamsport, MD.  Adam J. Harsh, May 3, <unitdate encodinganalog="Date.folder" type="inclusive">1980</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">152</container>
<unittitle encodinganalog="Title.folder">Happy Holidays card from Bob Kayhoe showing canal with building in background, October, <unitdate encodinganalog="Date.folder" type="inclusive">1977</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">153</container>
<unittitle encodinganalog="Title.folder">Post Card of McMahon's Mill, n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">154</container>
<unittitle encodinganalog="Title.folder">Post Card of locks and Old Government dam on Potomac River, Harper's Ferry, WV.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">155</container>
<unittitle encodinganalog="Title.folder">Evitts creek Aqueduct.  19--., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">156</container>
<unittitle encodinganalog="Title.folder">Eight mile level below Cumberland.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">157</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">158</container>
<unittitle encodinganalog="Title.folder">Bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">159</container>
<unittitle encodinganalog="Title.folder">Canal boat Sallie C. Goddard on canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">160</container>
<unittitle encodinganalog="Title.folder">Post Card Ye old Time Locks Lockport, NY, <unitdate encodinganalog="Date.folder" type="inclusive">1825</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">161</container>
<unittitle encodinganalog="Title.folder">Post Card building and people.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">162</container>
<unittitle encodinganalog="Title.folder">The mule driver in the foreground is Benjamin (Bennie) G, Garrish (still living) driving the mule that is towing Capt. Denton (Dent) Shupp's boat.  The mule driver in the background is George Williams driving the mule that is towing Capt. Henry (Hen) Preston's boat.  The boats are just below Lock 44 at Williamsport and are about to enter Lock 44 to be raised to the upper level on the way to Cumberland to be loaded.  November 19, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">163</container>
<unittitle encodinganalog="Title.folder">Antietam Iron Works.  The Antietam Iron works was an important...located on Antietam Creek just inland f...was opened here in 1765, and the...balls cast, and muskets turned out here...drove the wheels of industry.  The canal ...raw supplies in, and finished produces., <unitdate encodinganalog="Date.folder" type="inclusive">1822</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">164</container>
<unittitle encodinganalog="Title.folder">Lock House., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">165</container>
<unittitle encodinganalog="Title.folder">Building., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">166</container>
<unittitle encodinganalog="Title.folder">Lock 37.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">167</container>
<unittitle encodinganalog="Title.folder">Guard lock at Cumberland.  May 1, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">168</container>
<unittitle encodinganalog="Title.folder">Antietam C&amp;O Canal boats in Williamsport area., <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">169</container>
<unittitle encodinganalog="Title.folder">Post Card of Winch House C&amp;O Canal near Sharpburg, MD, at Dam number 4 on the Potomac River.  The winches in the building erected over the canal operated a stop gate, which was lowered in times if high water to protect the canal. n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">170</container>
<unittitle encodinganalog="Title.folder">A rough sketch of the Chesapeake and Ohio Canal at weverton, Washington County.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">171</container>
<unittitle encodinganalog="Title.folder">Lock 74.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">172</container>
<unittitle encodinganalog="Title.folder">Lock 68.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">173</container>
<unittitle encodinganalog="Title.folder">Fifteen Mile Creek Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1896</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">174</container>
<unittitle encodinganalog="Title.folder">Fifteen Mile Creek Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1896</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">175</container>
<unittitle encodinganalog="Title.folder">Fifteen Mile Creek Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1896</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">176</container>
<unittitle encodinganalog="Title.folder">Fifteen Mile Creek Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1896</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">177</container>
<unittitle encodinganalog="Title.folder">Canal and train tracks with boxcars up the Potomac from Williamsport, MD.  Cushwa's - Williamsport.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">178</container>
<unittitle encodinganalog="Title.folder">The Darby flour mill.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">179</container>
<unittitle encodinganalog="Title.folder">Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">180</container>
<unittitle encodinganalog="Title.folder">Aquaduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">181</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">182</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">183</container>
<unittitle encodinganalog="Title.folder">Canal boat Oak Spring at the Paw Paw Tunnel. n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">184</container>
<unittitle encodinganalog="Title.folder">Carpenter Shop Lock 66., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">185</container>
<unittitle encodinganalog="Title.folder">Lock 67.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">186</container>
<unittitle encodinganalog="Title.folder">Devil's Eyebrow.  March, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">187</container>
<unittitle encodinganalog="Title.folder">Dam number 6.  Great Cacapon, WV.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">188</container>
<unittitle encodinganalog="Title.folder">Post Card.  Embry and Cushwa, Canal Basin, Williamsport, MD.  Shippers and dealers in Georges Creek, bituminous and best qualities of gas and anthracite coals, also round top cement, plaster, grain, fertilizers &amp;c &amp;c, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">189</container>
<unittitle encodinganalog="Title.folder">This building still stands, and is used as the office of Victor Cushwa and Sons, for their coal and brick supplies.  This picture was taken around 1880 but exact date is not known.  This building has made many changes, and now it is proposed to be purchased by the National Park Service for a canal museum., <unitdate encodinganalog="Date.folder" type="inclusive">1880</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">190</container>
<unittitle encodinganalog="Title.folder">Post Card.  The wharf at Cushwa's used a large steam crane to unload coal from canal boats into railroad cars for shipment north and east.  In 1895 about 200 canal boats were in use between Cumberland, MD and Georgetown DC.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">191</container>
<unittitle encodinganalog="Title.folder">Dam 5, west of Guard Lock looking south., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">192</container>
<unittitle encodinganalog="Title.folder">Guard Lock number 5, looking downstream., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">193</container>
<unittitle encodinganalog="Title.folder">Dam 5.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">194</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">195</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">196</container>
<unittitle encodinganalog="Title.folder">Dickey's Tavern at Matildaville, Great falls Park, Virginia. (National Park Service).  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">197</container>
<unittitle encodinganalog="Title.folder">Railroad station, Great Falls, VA.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">198</container>
<unittitle encodinganalog="Title.folder">Metal loop in rock.  n,d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">199</container>
<unittitle encodinganalog="Title.folder">Building.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">200</container>
<unittitle encodinganalog="Title.folder">Tremendous cut for Locks 3, 4, 5 at the Great Falls, Viriginia.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">201</container>
<unittitle encodinganalog="Title.folder">Building at Greats Falls, VA.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">202</container>
<unittitle encodinganalog="Title.folder">Man at the base of a ravine.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">203</container>
<unittitle encodinganalog="Title.folder">Rock face.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">204</container>
<unittitle encodinganalog="Title.folder">George Washington Canal, Great Falls, VA Lock number 1 looking upstream.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">205</container>
<unittitle encodinganalog="Title.folder">George Washington Canal, Great Falls, VA, Ruins of old mill.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">206</container>
<unittitle encodinganalog="Title.folder">George Washington Canal, Great Falls, VA, Upper end of canal showing rubble retaining wall.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">207</container>
<unittitle encodinganalog="Title.folder">George Washington Canal, Great Falls, VA, Remains of old head gates at upper end of locks. n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">208</container>
<unittitle encodinganalog="Title.folder">George Washington Canal, Great Falls, VA, Rock cut at lock number 5 looking downstream.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">209</container>
<unittitle encodinganalog="Title.folder">West. Ind. Railroad bridge at head of big pool. n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">210</container>
<unittitle encodinganalog="Title.folder">bridge on C&amp;O Canal, near Old Fort Frederick. n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">211</container>
<unittitle encodinganalog="Title.folder">Lock house at Lock 50., <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">212</container>
<unittitle encodinganalog="Title.folder">McCoy's Ferry, C&amp;O Canal.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">213</container>
<unittitle encodinganalog="Title.folder">Building., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">214</container>
<unittitle encodinganalog="Title.folder">Stop Lock at Fort Fredrick.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">215</container>
<unittitle encodinganalog="Title.folder">Hancock, MD.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">216</container>
<unittitle encodinganalog="Title.folder">Monocacy Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">217</container>
<unittitle encodinganalog="Title.folder">The Monocacy Aquaduct as stabilized by the National Park Service taken by Peter Currell.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">218</container>
<unittitle encodinganalog="Title.folder">Stonework bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">219</container>
<unittitle encodinganalog="Title.folder">Stonework.  April, <unitdate encodinganalog="Date.folder" type="inclusive">1959</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">220</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct taken by Jack Rottier.  February, 16, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">221</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">222</container>
<unittitle encodinganalog="Title.folder">Lock 27.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">223</container>
<unittitle encodinganalog="Title.folder">Whites Ferry Bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">224</container>
<unittitle encodinganalog="Title.folder">Whites Ferry Bridge.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">225</container>
<unittitle encodinganalog="Title.folder">Lockhouse number 22.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">226</container>
<unittitle encodinganalog="Title.folder">House at Lock 37 (Mountain Lock).  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">227</container>
<unittitle encodinganalog="Title.folder">Lock 37., <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">228</container>
<unittitle encodinganalog="Title.folder">Lock 37 (Mountain Lock).  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">229</container>
<unittitle encodinganalog="Title.folder">Dry Dock below Lock 35.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">230</container>
<unittitle encodinganalog="Title.folder">Guard lock 3., <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">231</container>
<unittitle encodinganalog="Title.folder">Lock 34.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">232</container>
<unittitle encodinganalog="Title.folder">Antietam Creek above Antietam Bridge., <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">233</container>
<unittitle encodinganalog="Title.folder">Antietam Creek Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">234</container>
<unittitle encodinganalog="Title.folder">Antietam Village.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">235</container>
<unittitle encodinganalog="Title.folder">Antietam Aqueduct.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">236</container>
<unittitle encodinganalog="Title.folder">Antietam Bridge.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">237</container>
<unittitle encodinganalog="Title.folder">Kiln at Antietam Village.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">238</container>
<unittitle encodinganalog="Title.folder">Charles Mill.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">239</container>
<unittitle encodinganalog="Title.folder">House at Lock 37 (Mountain Lock).  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">240</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">241</container>
<unittitle encodinganalog="Title.folder">Justice Douglas.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">242</container>
<unittitle encodinganalog="Title.folder">Lock 33., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">243</container>
<unittitle encodinganalog="Title.folder">Fifteen Mile Creek Aqueduct.  Note pedestrian crossover bridge.  According to C&amp;O Canal regulations, such bridges had to be 17 feet above water level., <unitdate encodinganalog="Date.folder" type="inclusive">1896</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">244</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">245</container>
<unittitle encodinganalog="Title.folder">Just below junction (entry) of canal into the Potomac River at Lock 45., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">246</container>
<unittitle encodinganalog="Title.folder">Charles Mill., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">247</container>
<unittitle encodinganalog="Title.folder">Monocacy Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">248</container>
<unittitle encodinganalog="Title.folder">Charles Mill showing water wheel., <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">249</container>
<unittitle encodinganalog="Title.folder">Canoe on canal down from Lock.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">250</container>
<unittitle encodinganalog="Title.folder">Lock House at Catoctin Lock (Lock number 29). n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">251</container>
<unittitle encodinganalog="Title.folder">catoctin lock number 29., <unitdate encodinganalog="Date.folder" type="inclusive">1919</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">252</container>
<unittitle encodinganalog="Title.folder">Catoctin Lock number 29.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">253</container>
<unittitle encodinganalog="Title.folder">Catoctin Creek Aqueduct.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">254</container>
<unittitle encodinganalog="Title.folder">Catoctin Lock 29. 1924 flood. 1924 flood was the death of the C&amp;O Canal.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1924</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">255</container>
<unittitle encodinganalog="Title.folder">"Poor little ole me when I was a small mule skinner on the C&amp;O Canal".  S Lavenia Cross Waskey., <unitdate encodinganalog="Date.folder" type="inclusive">1915-1916</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">256</container>
<unittitle encodinganalog="Title.folder">"This is how my father L.H. Cross, made his living after the closing of the C&amp;O Canal and after he retired from railroading." S. Lavenia Cross Waskey. Boat landing on the Potomac River at Lander, Mdreached by crossing C&amp;O Canal at Lock number 29 Catoctin.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">257</container>
<unittitle encodinganalog="Title.folder">View of Catoctin Lock number 29.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">258</container>
<unittitle encodinganalog="Title.folder">Canal boat taken as it passed through Lock number 29 Catoctin, MD.  "I lives on one of these boats for several years when I was a child of three to five years."  Mrs. Otis Waskey Lander, MD., <unitdate encodinganalog="Date.folder" type="inclusive">1914</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">19</container>
<container label="Folder" type="Folder">259</container>
<unittitle encodinganalog="Title.folder">Lock pictures. n.d.Little Falls and Great Falls and Great Falls Tavern.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">View of Georgetown from canal boat.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">"Under the Foot Bridge".  Water color by Edward lange. D&amp;R Canal, <unitdate encodinganalog="Date.folder" type="inclusive">1878</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">West. MD Rail road bridge.  Six minutes below Cumberland. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Mexico Farms area above Lock 75.  Filled crossing with culvert pipes to Mexico Farms showing backed-up water. April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Canal Towage Company boat number 88 going through a lock. Way bills were checked here at Lock 75 (North Branch) and few miles below Cumberland.  On the return trip the boatmen often took the mules not being used off the boat here so that they would not be in the boat while it was being loaded at Cumberland., <unitdate encodinganalog="Date.folder" type="inclusive">1910</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">An alert team of two mules pulling a freight boat through Lock 75 at North Branch., <unitdate encodinganalog="Date.folder" type="inclusive">1900</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">7</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Lock 75.  Pittsburgh Plate Glass Co. Looking upstream shows beginning of clearing canal bed and towpath above Lock.  April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">8</container>
<unittitle encodinganalog="Title.folder">Res. 404-C&amp;O Canal.  Lock 75  Pittsburgh Glass Company area.  Looking upstream.  Shows pleliminary clearing of structure.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">9</container>
<unittitle encodinganalog="Title.folder">Custis Creek Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1938</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">10</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal freight boats passing the tin works on their approach to Cumberland, Maryland.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">11</container>
<unittitle encodinganalog="Title.folder">Cumberland, Maryland was the center of the eastern coal trade and the beginning of the narrator's story.  Chesapeake and Ohio Canal near terminus in Cumberland, MD., <unitdate encodinganalog="Date.folder" type="inclusive">1900</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">12</container>
<unittitle encodinganalog="Title.folder">Canal boats at Cumberland, Maryland, being loaded from railroad cars.  The boats riding low in the water have already been loaded., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">13</container>
<unittitle encodinganalog="Title.folder">Canal boats at Cumberland, Maryland, being loaded from railroad cars.  The boats riding low in the water have already been loaded., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">14</container>
<unittitle encodinganalog="Title.folder">"Taking a few steps to get a nearer view of the animals, one of the two boys yelled, ""take care, them mules will kick a chaw of tobacco out of a man's mouth three rods off.""n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">15</container>
<unittitle encodinganalog="Title.folder">Laney's Red Lion Pharmacy Captain Boynton and the Mushrooms.  Sometimes the boatmen would happen on unexpected surprises to brighten their lives, such as this occasion at the Cumberland Basin.  So far no one has identified exactly what is going on, but many soggy people turned out to take part. (Allegany County Histrical Society).  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">16</container>
<unittitle encodinganalog="Title.folder">Arrival of the Cumberland.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">17</container>
<unittitle encodinganalog="Title.folder">Laying dynamite for blasting.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">18</container>
<unittitle encodinganalog="Title.folder">Dam number 8.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">19</container>
<unittitle encodinganalog="Title.folder">Chesapeake and Pennsylvania Railroad.  Cumberland Wharfs. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">20</container>
<unittitle encodinganalog="Title.folder">Railroad and canal with buildings in the backgroud. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">21</container>
<unittitle encodinganalog="Title.folder">Railroad and canal with buildings in the backgroud. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">22</container>
<unittitle encodinganalog="Title.folder">Railroad and canal with buildings in the backgroud. n.d.The terminus of the canal at Cumberland, MD prior to the distruction of Dam number 8 in the 1950's, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">23</container>
<unittitle encodinganalog="Title.folder">Aerial view of Railroad and canal with buildings in the background.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Dyke from Antietam.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Railcars.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">26</container>
<unittitle encodinganalog="Title.folder">Dyke from Antietam.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">27</container>
<unittitle encodinganalog="Title.folder">Wills Creek.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Boat Dock with people.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">29</container>
<unittitle encodinganalog="Title.folder">Blasting Dam number 8, Cumberland.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">30</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">31</container>
<unittitle encodinganalog="Title.folder">A happy hiker pauses before going through the Paw Paw Tunnel on a 1974 C &amp;O Canal association hike of the entire canal., <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">32</container>
<unittitle encodinganalog="Title.folder">Geological anti-cline above Hancock, MD.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Geological anti-cline above Hancock, MD.  Shows clearing of towpath.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Geological anti-cline above Hancock, MD.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Lock 61.  September, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">36</container>
<unittitle encodinganalog="Title.folder">Lock 62 downstream of Paw Paw Tunnel.  Show preliminary clearing of structure.  October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">37</container>
<unittitle encodinganalog="Title.folder">Downstream from Paw Paw Tunnel below Lock 62.  Showing new bridge installed over flow off on towpath.  October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">38</container>
<unittitle encodinganalog="Title.folder">Lock 63.  Below Paw Paw Tunnel.  Preliminary clearing of undergrowth.  June 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">39</container>
<unittitle encodinganalog="Title.folder">Lock 64 below Paw Paw Tunnel.  Before clearing of undergrowth looking upstream.  June 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">40</container>
<unittitle encodinganalog="Title.folder">A C&amp;O Canal freight boat leaving Williamsport in the historic operating period.  A Bollman bridge is shown in the foreground and the Darby grist mill, which burned in 1904, in the distance alongside the canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">41</container>
<unittitle encodinganalog="Title.folder">.75 mile below Lock 44 -  Williamsport.  Looking downstream.  Shows clearing a piling of underbrush   October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">42</container>
<unittitle encodinganalog="Title.folder">Canal boat on water next to building.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">43</container>
<unittitle encodinganalog="Title.folder">Canal boats on water underneath bridge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">44</container>
<unittitle encodinganalog="Title.folder">Cushwa's Williamsport., <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">45</container>
<unittitle encodinganalog="Title.folder">Williamsport Harper's Ferry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">46</container>
<unittitle encodinganalog="Title.folder">Men working on the canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">47</container>
<unittitle encodinganalog="Title.folder">Darby Grain Mill.  Williamsport.  Mr. Darby in door of mill.  Mill burned in 1904., <unitdate encodinganalog="Date.folder" type="inclusive">1890</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">48</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal freight boat number 43 after it breached the berm parapet wall of the Conococheague Aqueduct and plunged into Conccocheague Creek, <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">49</container>
<unittitle encodinganalog="Title.folder">Williamsport aqueduct above Lock 44 over Conococheaque Creek looking toward the Potomac River.  Showing clearing, missing handrail and needed masonry work. December, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">50</container>
<unittitle encodinganalog="Title.folder">Berm side of the Conococheague Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">51</container>
<unittitle encodinganalog="Title.folder">Aqueduct.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">52</container>
<unittitle encodinganalog="Title.folder">Williamsport Aqueduct above Lock 44 looking upstream after clearing of brush.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">53</container>
<unittitle encodinganalog="Title.folder">Aqueduct.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">54</container>
<unittitle encodinganalog="Title.folder">Williamsport Aqueduct above Lock 44 looking downstream, showing clearing and new foot bridge.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">55</container>
<unittitle encodinganalog="Title.folder">Williamsport Aqueduct above Lock 44, over Conococheaque Creek looking upstream of creek.  Showing after clearing, missing handrail and needed painted up of masonry.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">56</container>
<unittitle encodinganalog="Title.folder">Old warehouse at Edward's Ferry Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">57</container>
<unittitle encodinganalog="Title.folder">Building near Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">58</container>
<unittitle encodinganalog="Title.folder">Replica canal Clipper II at Lock 20.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">59</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper II.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">60</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper II.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">61</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper.  Lock 5.  July 27, <unitdate encodinganalog="Date.folder" type="inclusive">1941</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">62</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper.  Lock 5.  July 27, <unitdate encodinganalog="Date.folder" type="inclusive">1941</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">63</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper under key Bridge in Georgetown. August 8, <unitdate encodinganalog="Date.folder" type="inclusive">1962</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">64</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper.  July 8, <unitdate encodinganalog="Date.folder" type="inclusive">1962</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">65</container>
<unittitle encodinganalog="Title.folder">Movie scene "Towpath Wast".  April 26, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">66</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper II.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">67</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper.  August 8, <unitdate encodinganalog="Date.folder" type="inclusive">1962</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">68</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper II.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">69</container>
<unittitle encodinganalog="Title.folder">Locks on the Rideau Canal., <unitdate encodinganalog="Date.folder" type="inclusive">1840</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">70</container>
<unittitle encodinganalog="Title.folder">Train and canal boat.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">71</container>
<unittitle encodinganalog="Title.folder">Louise of Georgetown at Great Falls Tavern. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">72</container>
<unittitle encodinganalog="Title.folder">John Quincy Adams on canal.  August 31, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">73</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper II.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">74</container>
<unittitle encodinganalog="Title.folder">USGS employees on an outing along the C&amp;O Canal., <unitdate encodinganalog="Date.folder" type="inclusive">1914-1916</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">75</container>
<unittitle encodinganalog="Title.folder">People on a canal barge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">76</container>
<unittitle encodinganalog="Title.folder">Canal Towage Company Boat number 34, Williamsport, MD after 1936 flood, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">77</container>
<unittitle encodinganalog="Title.folder">Bow of barge number 57 below Hancock., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">78</container>
<unittitle encodinganalog="Title.folder">Rock Creek.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">79</container>
<unittitle encodinganalog="Title.folder">Viking canal boat.  Lock 24.  Seneca, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">80</container>
<unittitle encodinganalog="Title.folder">Midship section of Barge number 57 below Hancock., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">81</container>
<unittitle encodinganalog="Title.folder">Lock., <unitdate encodinganalog="Date.folder" type="inclusive">1880-1889</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">82</container>
<unittitle encodinganalog="Title.folder">Canal boat in Lock., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">83</container>
<unittitle encodinganalog="Title.folder">Great Falls Lock., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">84</container>
<unittitle encodinganalog="Title.folder">Canal boats.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">85</container>
<unittitle encodinganalog="Title.folder">Along the Potomac River looking down the canal from intake lock., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">86</container>
<unittitle encodinganalog="Title.folder">Canal boat.  East from Lock 12.  August 29, <unitdate encodinganalog="Date.folder" type="inclusive">1926</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">87</container>
<unittitle encodinganalog="Title.folder">Boaters on the canal at either Lock 12 or 14. early 1900's, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">88</container>
<unittitle encodinganalog="Title.folder">Canal Clipper II in Georgetown.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">89</container>
<unittitle encodinganalog="Title.folder">Canal Clipper in Georgetown.  October 23, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">90</container>
<unittitle encodinganalog="Title.folder">Canal Clipper.  July 31, <unitdate encodinganalog="Date.folder" type="inclusive">1955</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">91</container>
<unittitle encodinganalog="Title.folder">Replica Canal Clipper.  July 27, <unitdate encodinganalog="Date.folder" type="inclusive">1941</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">92</container>
<unittitle encodinganalog="Title.folder">Train and canal boat.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">93</container>
<unittitle encodinganalog="Title.folder">Map of the country between Washington and Pittsburg referring to the contemplated Chesapeake and Ohio Canal and its general route and profile. October, <unitdate encodinganalog="Date.folder" type="inclusive">1826</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">94</container>
<unittitle encodinganalog="Title.folder">NCP office party, C&amp;O Canal barge trip.  Canal Clipper going under Key Bridge in Georgetown.  September 9, <unitdate encodinganalog="Date.folder" type="inclusive">1958</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">95</container>
<unittitle encodinganalog="Title.folder">Map of C&amp;O Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">96</container>
<unittitle encodinganalog="Title.folder">Map of C&amp;O Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">97</container>
<unittitle encodinganalog="Title.folder">Map of C&amp;O Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">98</container>
<unittitle encodinganalog="Title.folder">Fuder Canal, Dam number 6.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">99</container>
<unittitle encodinganalog="Title.folder">Canal boat and railroad.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">100</container>
<unittitle encodinganalog="Title.folder">Forrest-Marbury Mansion.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">101</container>
<unittitle encodinganalog="Title.folder">Lock House 52.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">102</container>
<unittitle encodinganalog="Title.folder">Canal boat on the C&amp;O Canal., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">103</container>
<unittitle encodinganalog="Title.folder">Canal Towage number 35 and 51 canal boats. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">104</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">105</container>
<unittitle encodinganalog="Title.folder">Lock house B on the Washington (Eastern) Branch of the C&amp;O Canal., <unitdate encodinganalog="Date.folder" type="inclusive">1860</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">106</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">107</container>
<unittitle encodinganalog="Title.folder">Lock house on canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">108</container>
<unittitle encodinganalog="Title.folder">Lock 74 Pittsburgh Glass Company area.  Looking upstream. Shows clearing of structure only.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">109</container>
<unittitle encodinganalog="Title.folder">Lock house and canal boat at Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">110</container>
<unittitle encodinganalog="Title.folder">US senator Charles McC. Mathias, Jr. of Maryland, inspects an impressionistic painting of the Seneca Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">111</container>
<unittitle encodinganalog="Title.folder">Stone work in C&amp;O Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">112</container>
<unittitle encodinganalog="Title.folder">Bypass flume at Lock 19.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">113</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">114</container>
<unittitle encodinganalog="Title.folder">Lock house 22.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">115</container>
<unittitle encodinganalog="Title.folder">Locks on the Rideau Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">116</container>
<unittitle encodinganalog="Title.folder">The Ottawa River at Bytown.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">117</container>
<unittitle encodinganalog="Title.folder">The Rideau Canal, Bytown.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">118</container>
<unittitle encodinganalog="Title.folder">Boat making was an important industry in Cumberland. Here at the boat yard two boats are in progress on the ways and another is awaiting finishing touches prior to be placed into commission.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">119</container>
<unittitle encodinganalog="Title.folder">Dam number 8.  Cumberland, MD. C&amp;O Canal.  April 12, <unitdate encodinganalog="Date.folder" type="inclusive">1954</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">120</container>
<unittitle encodinganalog="Title.folder">Lock 70 Oldtown.  Showing lock house and cleared towpath. March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">121</container>
<unittitle encodinganalog="Title.folder">Lock 71.  Oldtown Sportsman's Club.  After clearing of structure.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">122</container>
<unittitle encodinganalog="Title.folder">Pump house and lock on 8 mile level above Oldtown. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">123</container>
<unittitle encodinganalog="Title.folder">Lock 72.  Blue Spring Patterson Creek.  Looking upstream below lock.  Shows clearing of structure.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">124</container>
<unittitle encodinganalog="Title.folder">Lock 72 Blue Spring.Looking upstream.  After clearing of underbrush from Canal bed and towpath.  April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">125</container>
<unittitle encodinganalog="Title.folder">A "Short Level" between Lock 73 and Lock 74.  Railroads crossed the canal many times between Georgetown and Cumberland, this crossing being  Bridge 65 of the B&amp;O Railroad., <unitdate encodinganalog="Date.folder" type="inclusive">1907-1923</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">126</container>
<unittitle encodinganalog="Title.folder">Sideling Hill Creek Aqueduct from downstream side, east bank of Sideling Hill Creek above Lock 56.  Showing railroad bridge upstream of the Aqueduct, before clearing.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">127</container>
<unittitle encodinganalog="Title.folder">¼ mile below Little Orleans on towpath, Lock 57.  Showing clearing of canal bed and towpath and brush piled for clearing.  October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">128</container>
<unittitle encodinganalog="Title.folder">Little Orleans Aqueduct below Lock 58.  Showing down stream face after undergrowth removed.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">129</container>
<unittitle encodinganalog="Title.folder">Little Orleans Aqueduct looking downstream below Lock 58. After clearing completed shows masonry work and missing handrail.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">130</container>
<unittitle encodinganalog="Title.folder">Lock 69 in the foreground and Lock in the background. Looking upstream.  After clearing of structure and towpath.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">131</container>
<unittitle encodinganalog="Title.folder">Feeder lock gate at Dam number 6 east of Pearee, MD opposite Capacon.  Lock 55.  Looking downstream showing missing retaining wall after removal of undergrowth.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">132</container>
<unittitle encodinganalog="Title.folder">Cacapon.  Feeder dam number 6.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">133</container>
<unittitle encodinganalog="Title.folder">Dam six from the Maryland side and Great Cacapon. October 17, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">134</container>
<unittitle encodinganalog="Title.folder">Stone work.  October 14, <unitdate encodinganalog="Date.folder" type="inclusive">1941</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">135</container>
<unittitle encodinganalog="Title.folder">Falls.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">136</container>
<unittitle encodinganalog="Title.folder">Lock 55 Dam 6.  Looking into feeder lock from downstream side.  After clearing.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">137</container>
<unittitle encodinganalog="Title.folder">Falls and stone building.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">138</container>
<unittitle encodinganalog="Title.folder">Dam number 6.  Poly Pond on the right.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">139</container>
<unittitle encodinganalog="Title.folder">Sideling Hill Creek Aqueduct.  2 miles downstream from Little Orleans.  Looking from railroad tressel into aqueduct from the west side.  Above Lock 58. After clearing.  Wall over barrel missing on upstream side.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">140</container>
<unittitle encodinganalog="Title.folder">Lock 631/3 Downstream from Paw Paw Tunnel.  Partial clearing of structures.  Lock 631/3, one of the three locks concentrated just below the Paw Paw Tunnel.  Note the rough rubble stone used in the construction of the lock walls as an 'economy measure'.  October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">141</container>
<unittitle encodinganalog="Title.folder">View of the cut below the Paw Paw Tunnel from the interior of the tunnel., <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">142</container>
<unittitle encodinganalog="Title.folder">Hikers in the Paw Paw Tunnel.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">143</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel.  Downstream side.  Taken form  an old postal card.  Almost all former boatmen had something to say about the Paw Paw Tunnel.  This view shows the wooden towpath at the downstream end of the tunnel.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">144</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel.  Showing restoration of masonry work. October 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">145</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel.  Brick work restoration.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">146</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel.  Downstream entrance.  Preliminary clearance of portals.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">147</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel masonry restoration.  The Paw Paw Tunnel requires frequent attention to keep it in a safe condition for hikers and bikers to pass through. August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">148</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal at Pinesburg Station., <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">149</container>
<unittitle encodinganalog="Title.folder">Lock on canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">150</container>
<unittitle encodinganalog="Title.folder">Dam number 5.  Canal boats used the river for navigation for about a half mile in the slackwater behind Dam 5, called "Little Slackwater."  On one occasion a boat was swept over this dam and the captain and his daughter were killed.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">151</container>
<unittitle encodinganalog="Title.folder">Lock number 5.  Mule Bridge and Foot Bridge.  Locktenders Watch House., <unitdate encodinganalog="Date.folder" type="inclusive">1906</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">152</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">153</container>
<unittitle encodinganalog="Title.folder">Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">154</container>
<unittitle encodinganalog="Title.folder">Slackwater above dam 5.  Upstream end of cut at Little Slackwater., <unitdate encodinganalog="Date.folder" type="inclusive">1906</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">155</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern., <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">156</container>
<unittitle encodinganalog="Title.folder">Shenandoah Outlet Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">157</container>
<unittitle encodinganalog="Title.folder">Drawing of the approach by canal to Lock 33 (Harpers Ferry Lock ) by Lieutenant Washington Hood in 1832. n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">158</container>
<unittitle encodinganalog="Title.folder">Chesapeake and Delaware Removal of old lock at Ches. City.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">159</container>
<unittitle encodinganalog="Title.folder">The Shenandoah River Outlet Lock was located just to the left in this photograph.  Boats were poled across the Potomac River to the mouth of the Shenandoah River at the far end of the Bollman truss bridge to Harpers Ferry, which is shown in the background. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">160</container>
<unittitle encodinganalog="Title.folder">Approaching Lock 33.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">161</container>
<unittitle encodinganalog="Title.folder">Harpers Ferry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">162</container>
<unittitle encodinganalog="Title.folder">Canal boats on canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">163</container>
<unittitle encodinganalog="Title.folder">Mole Bridge-above dams-2 Locks., <unitdate encodinganalog="Date.folder" type="inclusive">1900</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">164</container>
<unittitle encodinganalog="Title.folder">Along the canal at villages, or important agricultural districts, or where valleys break through the mountains, there were warehouses where mule feed and other boat stores including bread could be procured, and where goods could be received and delivered by the boats.  Photo is of Four Locks where such service were obtained.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">165</container>
<unittitle encodinganalog="Title.folder">Lock, footbridge and buildings.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">166</container>
<unittitle encodinganalog="Title.folder">Lock 61.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">167</container>
<unittitle encodinganalog="Title.folder">Justice Douglas on the C&amp;O Canal., <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">168</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal hike.  April, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">169</container>
<unittitle encodinganalog="Title.folder">Canal Towage Company boat number 88 going through a lock. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">170</container>
<unittitle encodinganalog="Title.folder">Cushwa's Wharf, Williamsport, MD.  From a series of photographs made by the Consolidation Coal Company, <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">171</container>
<unittitle encodinganalog="Title.folder">Arrival of the Cumberland.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">172</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal.  Lock 1, Georgetown, DC.  Mrs. Romanowski, Con Heine's son, 3 actors and Captain Bender filming of transportation movie by University of Indiana.  April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">173</container>
<unittitle encodinganalog="Title.folder">Lock and buildings.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">174</container>
<unittitle encodinganalog="Title.folder">Lock and building.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">175</container>
<unittitle encodinganalog="Title.folder">Towpath C&amp;O Canal sketch.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">176</container>
<unittitle encodinganalog="Title.folder">Foot bridge over canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">177</container>
<unittitle encodinganalog="Title.folder">Some of the boatmen said that there was the ghost of an Indian chief who haunted the towpath at Big Pool east of Hancock, MD.   Consolidation Coal Company pictures obtained in 1965 from Smithsonian Museum of History and Technology.  Dr. John N, H. Hoffman, Curator. Photo of Big Pool, <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">178</container>
<unittitle encodinganalog="Title.folder">Looking west on downstream side of Lock 52 toward Gonnoloway Creek aqueduct downstream of Hancock, MD.  Shows partial clearing undergrowth and trees. August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">179</container>
<unittitle encodinganalog="Title.folder">Above Lock 52 in Hancock, MD back of railroad station. 200 feet upstream of bridge over Canal.  Showing clearing of canal bed and towpath.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">180</container>
<unittitle encodinganalog="Title.folder">Toll bridge.  Hancock, MD.Old gate house, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">181</container>
<unittitle encodinganalog="Title.folder">Old gate house along side of canal in Hanover. Winter, <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939 %32882016916192</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">182</container>
<unittitle encodinganalog="Title.folder">Lock 39 in Shepherdstown, WVA looking up stream after clearing of underbrush.  March 16, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">183</container>
<unittitle encodinganalog="Title.folder">Ferry Hill Platation.  C&amp;O Hike.  April, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">184</container>
<unittitle encodinganalog="Title.folder">Killiansburg Cave above Lock 38.  Killing's Cave, on the banks of the Potomac, near  Sharpsburg , the place of refuge of many citizens during the Battle of Antietam.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">185</container>
<unittitle encodinganalog="Title.folder">Old mule barn at Four Locks.  n.d., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">186</container>
<unittitle encodinganalog="Title.folder">Dam number 3 near Harper's Ferry., <unitdate encodinganalog="Date.folder" type="inclusive">1938</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">187</container>
<unittitle encodinganalog="Title.folder">Lock house 13 looking west on the C&amp;O Canal before construction of Cabin John Bridge showing flume with rip rap.  March 23, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">188</container>
<unittitle encodinganalog="Title.folder">Two locks one in foreground the other in the background. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">189</container>
<unittitle encodinganalog="Title.folder">Potomac Refining Co./Patent Lime Co. above Harper's Ferry on C&amp;O Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">190</container>
<unittitle encodinganalog="Title.folder">Lock 44-Williamsport looking doewndtream clearing of underbrush on towpath below the lock.  October 16, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">191</container>
<unittitle encodinganalog="Title.folder">Monocacy Aquaduct.  South side of structure. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">192</container>
<unittitle encodinganalog="Title.folder">Monocacy Creek Aqueduct from east end.   nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">193</container>
<unittitle encodinganalog="Title.folder">Monocacy Creek Aqueduct from the west end. nd, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">194</container>
<unittitle encodinganalog="Title.folder">Dam 4.  July 22, <unitdate encodinganalog="Date.folder" type="inclusive">1936</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">195</container>
<unittitle encodinganalog="Title.folder">Camp Kanawha.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">196</container>
<unittitle encodinganalog="Title.folder">Point of Rocks.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">197</container>
<unittitle encodinganalog="Title.folder">White's Ferry on the C&amp;O Canal looking downstream from highway crossing below Lock 26 prior to clearing canal bed of undergrowth.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">198</container>
<unittitle encodinganalog="Title.folder">Woods Lock 26 on the C&amp;O Canal before clearing undergrowth from lock structure.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">199</container>
<unittitle encodinganalog="Title.folder">Campbell's Lock 27 on the C&amp;O Canal looking downstream from footbridge after clearing.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">200</container>
<unittitle encodinganalog="Title.folder">Stone work.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">201</container>
<unittitle encodinganalog="Title.folder">Patowmack canal.  Great Falls, Virginia.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">202</container>
<unittitle encodinganalog="Title.folder">Stone work.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">203</container>
<unittitle encodinganalog="Title.folder">Stone work of lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">204</container>
<unittitle encodinganalog="Title.folder">Stone work.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">205</container>
<unittitle encodinganalog="Title.folder">Stone work of lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">206</container>
<unittitle encodinganalog="Title.folder">Campbell's Lock 27 on C&amp;O Canal looking upstream from footbridge prior to cleaning.  December 3, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">207</container>
<unittitle encodinganalog="Title.folder">Bruswick taken from lock looking upstream showing of structure after clearing of Canal bed.  April 27, <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">208</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">209</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  April 4, <unitdate encodinganalog="Date.folder" type="inclusive">1945</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">210</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  April 4, <unitdate encodinganalog="Date.folder" type="inclusive">1945</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">211</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  April 4, <unitdate encodinganalog="Date.folder" type="inclusive">1945</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">212</container>
<unittitle encodinganalog="Title.folder">His lady leading (in light trousers), Justice Douglas, lags behind.  Potomac in background., <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">213</container>
<unittitle encodinganalog="Title.folder">Ice skating on the C&amp;O Canal.  January 11, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">214</container>
<unittitle encodinganalog="Title.folder">Hikers on the C&amp;O Canal.  Crew Cut Stewart Udall next to Mrs. Udall.  May 6, <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">215</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  n.d. Canal and lock near Harper's Ferry., <unitdate encodinganalog="Date.folder" type="inclusive">1880</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">216</container>
<unittitle encodinganalog="Title.folder">Justice Douglas.  May 5, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">217</container>
<unittitle encodinganalog="Title.folder">Brunswick, probably not lock house but possibility. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">218</container>
<unittitle encodinganalog="Title.folder">Lock 28.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">219</container>
<unittitle encodinganalog="Title.folder">Catoctin Aqueduct.  April 4, <unitdate encodinganalog="Date.folder" type="inclusive">1945</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">220</container>
<unittitle encodinganalog="Title.folder">Canal and lock near Harper's Ferry., <unitdate encodinganalog="Date.folder" type="inclusive">1880</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">221</container>
<unittitle encodinganalog="Title.folder">Canal and lock near Harper's Ferry., <unitdate encodinganalog="Date.folder" type="inclusive">1900</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">222</container>
<unittitle encodinganalog="Title.folder">Stonework on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">223</container>
<unittitle encodinganalog="Title.folder">Lock 33.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">224</container>
<unittitle encodinganalog="Title.folder">Lock 33, Harper's Ferry looking upstream showing undergrowth prior to clearing.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">225</container>
<unittitle encodinganalog="Title.folder">Lock 33, Harper's Ferry looking upstream showing undergrowth prior to clearing.  December 2, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">226</container>
<unittitle encodinganalog="Title.folder">Bicycling on the C&amp;O Canal towpath near Harper's Ferry., <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">227</container>
<unittitle encodinganalog="Title.folder">Lock 33.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">228</container>
<unittitle encodinganalog="Title.folder">Below Lock 51 looking upstream, below Hancock showing face of downstream side of lock after clearing.  August 22, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">229</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">230</container>
<unittitle encodinganalog="Title.folder">Air view over Key Bridge with Rosslyn in the foreground and Georgetown in the background.  Image reversed.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">231</container>
<unittitle encodinganalog="Title.folder">View of Georgetown., <unitdate encodinganalog="Date.folder" type="inclusive">1865</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">232</container>
<unittitle encodinganalog="Title.folder">Aqueduct of Potomac, Georgetown DC.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">233</container>
<unittitle encodinganalog="Title.folder">Aqueduct Bridge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">234</container>
<unittitle encodinganalog="Title.folder">Alexandria Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1870</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">235</container>
<unittitle encodinganalog="Title.folder">Alexandria Aqueduct., <unitdate encodinganalog="Date.folder" type="inclusive">1870</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">236</container>
<unittitle encodinganalog="Title.folder">Potomac Aqueduct, Georgetown., <unitdate encodinganalog="Date.folder" type="inclusive">1865</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">237</container>
<unittitle encodinganalog="Title.folder">Alexandria Aqueduct prior to removal of piers in river., <unitdate encodinganalog="Date.folder" type="inclusive">1950</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">238</container>
<unittitle encodinganalog="Title.folder">Potomac Aqueduct, Georgetown., <unitdate encodinganalog="Date.folder" type="inclusive">1900</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">239</container>
<unittitle encodinganalog="Title.folder">Aqueduct Bridge, Georgetown.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">240</container>
<unittitle encodinganalog="Title.folder">At Georgetown the canal crossed the Potomac on a long wooden bridge, or aqueduct, built similar to a carriage bridge but instead of a roadway it had to support a box filled with water through which the boat sailed.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">241</container>
<unittitle encodinganalog="Title.folder">Aqueduct Bridge, Georgetown University.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">242</container>
<unittitle encodinganalog="Title.folder">Paper from the President's Office of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">20</container>
<container label="Folder" type="Folder">243</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge in lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of three men, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of man with tricornered hat, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of three men, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of carts and boats.  Different types of portage, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge approaching lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge in lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge in lock after water raised, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge leaving lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Medium format negative of bridge and canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Medium format negative of bridge and canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of Harpers Ferry, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge "Chadakoyn" moored next to a wooden building, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge being pulled by mules on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge "Chadakoyn" moored next to a wooden building, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of canoe at lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of aqueduct on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of lock, lock keeper and lock keepers house on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of aqueduct on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of aqueduct on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge Canal Towage Co. No.1, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of canal barge and mules on aqueduct on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Medium format negative of bridge over flooded waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">24</container>
<unittitle encodinganalog="Title.folder">Large format negative of canal boat Canal Towage Co. No.3 on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Folder" type="Folder">25</container>
<unittitle encodinganalog="Title.folder">Large format negative of bridges over waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of canal boats in C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of C&amp;PRR - Cumberland Wharf - Canal boats in C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Folder" type="Folder">28</container>
<unittitle encodinganalog="Title.folder">Large format negative of mule pulling canal boat in the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal boats lines up on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of point along the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of two men in front of bridge to Georgetown with Georgetown in the background, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of canal barge coming out of the Paw Paw Tunnel on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Folder" type="Folder">33</container>
<unittitle encodinganalog="Title.folder">Large format negative of large wooden building, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">34</container>
<unittitle encodinganalog="Title.folder">Large format negative of wooden buildings at lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Folder" type="Folder">35</container>
<unittitle encodinganalog="Title.folder">Large format negative of wooden building, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of lock on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of mules pulling canal barges on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of C&amp;O Canal and Potomac River at Williamsport, MD., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of mechanical bridge over the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of an overhead view of a canal barge in a lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal barges on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of view of Harper's Ferry, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of a lock and buildings on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal barges and mules on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Large format negative of Harper's Ferry, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of Harper's Ferry, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of view of the island, Virginius, in the Shenandoah, at Harper's Ferry taken near Jefferson Rock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of buildings along the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Large format negative of buildings along the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of masonry structure on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of buildings near waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of lock and buildings on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of Georgetown on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of Canal Towage Co. No.93 on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of lock and building on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal barges and buildings on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal barge going through lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal barge going through lock next to a lock house on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of canal, buildings, and railroad trellis bridge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<unittitle encodinganalog="Title.folder">Large format negative of the plan for the incline plan, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
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<container label="Box" type="Box">21</container>
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<unittitle encodinganalog="Title.folder">Large format negative of the Outlet Incline on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">1876</unitdate></unittitle>

</did>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">153</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">154</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">155</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">156</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">157</container>
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<container label="Folder" type="Folder">158</container>
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<container label="Folder" type="Folder">159</container>
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<container label="Folder" type="Folder">160</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">161</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">162</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">163</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">164</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">165</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">166</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">167</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">168</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">169</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern and Lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">170</container>
<unittitle encodinganalog="Title.folder">Canal barge and railcar working, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">171</container>
<unittitle encodinganalog="Title.folder">Canal barges on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">172</container>
<unittitle encodinganalog="Title.folder">Barge on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">173</container>
<unittitle encodinganalog="Title.folder">Building on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">174</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">175</container>
<unittitle encodinganalog="Title.folder">Barge on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">176</container>
<unittitle encodinganalog="Title.folder">Barge on canal with stonework and buildings, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">177</container>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">178</container>
<unittitle encodinganalog="Title.folder">People firing cannons, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">179</container>
<unittitle encodinganalog="Title.folder">Side of canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">180</container>
<unittitle encodinganalog="Title.folder">Barges, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">181</container>
<unittitle encodinganalog="Title.folder">People working, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">182</container>
<unittitle encodinganalog="Title.folder">People inside house, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">183</container>
<unittitle encodinganalog="Title.folder">Barge at Lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">184</container>
<unittitle encodinganalog="Title.folder">Mule pulling barge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">185</container>
<unittitle encodinganalog="Title.folder">Barges on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">186</container>
<unittitle encodinganalog="Title.folder">Mules, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">187</container>
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<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">188</container>
<unittitle encodinganalog="Title.folder">Barge on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">189</container>
<unittitle encodinganalog="Title.folder">Barge on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">190</container>
<unittitle encodinganalog="Title.folder">Man blowing horn, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">191</container>
<unittitle encodinganalog="Title.folder">Barge on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">192</container>
<unittitle encodinganalog="Title.folder">House at lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">193</container>
<unittitle encodinganalog="Title.folder">House at Lock, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">194</container>
<unittitle encodinganalog="Title.folder">Barge on canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">195</container>
<unittitle encodinganalog="Title.folder">Barge on canal aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">196</container>
<unittitle encodinganalog="Title.folder">Dam, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">197</container>
<unittitle encodinganalog="Title.folder">The End, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">198</container>
<unittitle encodinganalog="Title.folder">Photograph of historical marker on the restored section of the original Erie Canal.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">199</container>
<unittitle encodinganalog="Title.folder">Photograph of Erie Canal (original) Fort Bull Rome, NY. Independence.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">200</container>
<unittitle encodinganalog="Title.folder">Photograph of John Atkinson 'saving' the Independence. May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">201</container>
<unittitle encodinganalog="Title.folder">Photograph of team towing Independence on restored section of original Erie Canal near Rome, NY.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">202</container>
<unittitle encodinganalog="Title.folder">Photograph on top of Independence on restored section of the original Erie Canal near Rome, NY.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">203</container>
<unittitle encodinganalog="Title.folder">Photograph of Potomac canal lock at Fletchers. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">204</container>
<unittitle encodinganalog="Title.folder">Photograph of Potomac canal lock at Fletchers. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">205</container>
<unittitle encodinganalog="Title.folder">Photograph of Potomac canal lock at Fletchers. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">206</container>
<unittitle encodinganalog="Title.folder">Photograph of Potomac canal lock at Fletchers. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">207</container>
<unittitle encodinganalog="Title.folder">Photograph of model at Great Falls, MD Sybil Ann. December, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">208</container>
<unittitle encodinganalog="Title.folder">Photograph of Sybil Ann, Great Falls, Maryland Museum. December, <unitdate encodinganalog="Date.folder" type="inclusive">1975</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">209</container>
<unittitle encodinganalog="Title.folder">Photograph of cable foot bridge at Great Falls.   C&amp;O Canal Historic (74-105).  Please credit National Park Service Photo E.B. Thompson, Historic Negative Collection circa, <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">210</container>
<unittitle encodinganalog="Title.folder">Photograph of house at Lock 51 (122.59). December, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">211</container>
<unittitle encodinganalog="Title.folder">Photograph of Tonoloway Creek aqueduct (No. 7) (122.96). December, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">212</container>
<unittitle encodinganalog="Title.folder">Photograph of Lock 52 (122.89).  December, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">213</container>
<unittitle encodinganalog="Title.folder">Photograph of McCoy's Ferry, C&amp;O Canal. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">214</container>
<unittitle encodinganalog="Title.folder">Photograph of the Guard Lock (184.50) "The end of the Canal" April, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">215</container>
<unittitle encodinganalog="Title.folder">Photograph of Lock House 36.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">216</container>
<unittitle encodinganalog="Title.folder">Photograph of Lock House 49 (106.80). January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">217</container>
<unittitle encodinganalog="Title.folder">Photograph of Lock House 52. January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">218</container>
<unittitle encodinganalog="Title.folder">Repair shed, Lock 66.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">219</container>
<unittitle encodinganalog="Title.folder">Lock House 68.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">220</container>
<unittitle encodinganalog="Title.folder">C&amp; O Canal Lock House 71 front view. September, <unitdate encodinganalog="Date.folder" type="inclusive">1959</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">221</container>
<unittitle encodinganalog="Title.folder">Lock House 52.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">222</container>
<unittitle encodinganalog="Title.folder">Section House Lock 39.  April, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">223</container>
<unittitle encodinganalog="Title.folder">Building Lock 72.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">224</container>
<unittitle encodinganalog="Title.folder">Lock House 44.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">225</container>
<unittitle encodinganalog="Title.folder">Tide Lock 0.00. Down river, upper gate pocket, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">226</container>
<unittitle encodinganalog="Title.folder">Point of Rocks railroad station.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">227</container>
<unittitle encodinganalog="Title.folder">Mouth of Monocacy Post Office and Spellman Store. April, <unitdate encodinganalog="Date.folder" type="inclusive">1971</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">228</container>
<unittitle encodinganalog="Title.folder">House at Lock 74.  April, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">229</container>
<unittitle encodinganalog="Title.folder">Lock house.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">230</container>
<unittitle encodinganalog="Title.folder">Lock house in flood., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">231</container>
<unittitle encodinganalog="Title.folder">Lock house., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">232</container>
<unittitle encodinganalog="Title.folder">Lock house., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">233</container>
<unittitle encodinganalog="Title.folder">Flooded road., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">234</container>
<unittitle encodinganalog="Title.folder">Loc 6 Parking flooded., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">235</container>
<unittitle encodinganalog="Title.folder">Mill site sign. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">236</container>
<unittitle encodinganalog="Title.folder">Holding Basin sign. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">237</container>
<unittitle encodinganalog="Title.folder">Potomac River at Great Falls.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">238</container>
<unittitle encodinganalog="Title.folder">Guard Gate sign.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">239</container>
<unittitle encodinganalog="Title.folder">Potomac River at Great Falls.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">240</container>
<unittitle encodinganalog="Title.folder">Large eye bolt in rock near Great Falls. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">241</container>
<unittitle encodinganalog="Title.folder">Lock with canal boat and mules. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">242</container>
<unittitle encodinganalog="Title.folder">Canal boat with mules going over an aqueduct. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">243</container>
<unittitle encodinganalog="Title.folder">Canal boat going through a lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">244</container>
<unittitle encodinganalog="Title.folder">Woman standing on aqueduct. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">245</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">246</container>
<unittitle encodinganalog="Title.folder">Swinging wagon Bridge at Lock no. 25 (Edward's Ferry). NPS Restoration., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">247</container>
<unittitle encodinganalog="Title.folder">Stop lock and winch house at Dam number 4 below Williamsport, MD.  It is...frontal that in the flood of 1936 which destroyed this section of the dam, this little building was submerged to within 18 inches of its ridge and survived. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">248</container>
<unittitle encodinganalog="Title.folder">Eight Mile Level above Seneca with canal boat and mules. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">249</container>
<unittitle encodinganalog="Title.folder">Eight Mile Level above Seneca with canal boat and mules. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">250</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">251</container>
<unittitle encodinganalog="Title.folder">Lock 41/42 with canal boat on canal. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">252</container>
<unittitle encodinganalog="Title.folder">Canal boat on canal under bridge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">253</container>
<unittitle encodinganalog="Title.folder">Lock 56.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">254</container>
<unittitle encodinganalog="Title.folder">Potomac Canal, Great Falls, VA.  September, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">255</container>
<unittitle encodinganalog="Title.folder">Potomac Canal, Great Falls, VA.  September, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">256</container>
<unittitle encodinganalog="Title.folder">View of the canal. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">257</container>
<unittitle encodinganalog="Title.folder">View of the canal. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">258</container>
<unittitle encodinganalog="Title.folder">Canal at Hancock, MD.  Print reversed. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">259</container>
<unittitle encodinganalog="Title.folder">Canal at Hancock, MD.  Early 1900's, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">260</container>
<unittitle encodinganalog="Title.folder">Lock 58.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">261</container>
<unittitle encodinganalog="Title.folder">Lock 64 2/3.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">262</container>
<unittitle encodinganalog="Title.folder">East end of the Paw Paw tunnel. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">263</container>
<unittitle encodinganalog="Title.folder">lived Lock head of 1 mile level.  Print reversed. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">264</container>
<unittitle encodinganalog="Title.folder">Frame house #2 Great Falls S. elevation., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">265</container>
<unittitle encodinganalog="Title.folder">Chimney of Inn at Lock 38.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">266</container>
<unittitle encodinganalog="Title.folder">Chimney of Inn at Lock 38.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">267</container>
<unittitle encodinganalog="Title.folder">Lock 38 from Dumsey Bridge.  May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">268</container>
<unittitle encodinganalog="Title.folder">Lock 30 (Brunswick, Maryland).  Lock was extended upstream in the 1870's to accommodate an extra boat through the lock to expedite locking through time.  Of the extended locks, most were extended downstream which was a much simpler conversion to this type lock.  Note also the pivot (swing)., <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">269</container>
<unittitle encodinganalog="Title.folder">Canal (lock) wall.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">270</container>
<unittitle encodinganalog="Title.folder">Canal (lock) wall.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">271</container>
<unittitle encodinganalog="Title.folder">Canal (lock) wall.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">272</container>
<unittitle encodinganalog="Title.folder">Canal (lock) wall.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">273</container>
<unittitle encodinganalog="Title.folder">Canal (lock) wall.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">274</container>
<unittitle encodinganalog="Title.folder">Point of Rocks Bridge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">275</container>
<unittitle encodinganalog="Title.folder">Point of Rocks Bridge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">276</container>
<unittitle encodinganalog="Title.folder">Train along canal. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">277</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal at Harpers Ferry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">278</container>
<unittitle encodinganalog="Title.folder">Lock 33., <unitdate encodinganalog="Date.folder" type="inclusive">1900 ca.</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">279</container>
<unittitle encodinganalog="Title.folder">Falls., <unitdate encodinganalog="Date.folder" type="inclusive">1964</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">280</container>
<unittitle encodinganalog="Title.folder">Lock 36. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">281</container>
<unittitle encodinganalog="Title.folder">Potomac Refining Company.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">282</container>
<unittitle encodinganalog="Title.folder">Bridge. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">283</container>
<unittitle encodinganalog="Title.folder">Bridge. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">284</container>
<unittitle encodinganalog="Title.folder">Lock 38 looking downstream from towpath.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">285</container>
<unittitle encodinganalog="Title.folder">Lock 38., <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">286</container>
<unittitle encodinganalog="Title.folder">Canal boat on Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">287</container>
<unittitle encodinganalog="Title.folder">Canal boat on Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">288</container>
<unittitle encodinganalog="Title.folder">Canal boat on Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">289</container>
<unittitle encodinganalog="Title.folder">Bridge. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">290</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">291</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">292</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">293</container>
<unittitle encodinganalog="Title.folder">Lock 23 and Inlet Lock., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">294</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">295</container>
<unittitle encodinganalog="Title.folder">Lock House and Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">296</container>
<unittitle encodinganalog="Title.folder">Canal boat.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">297</container>
<unittitle encodinganalog="Title.folder">Canal boat.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">298</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">299</container>
<unittitle encodinganalog="Title.folder">House at Lock 7.  Settlement cracks in the wall, carelessly built after the 1936 flood tore away some of it.  Dormer windows and plumbing added 1936-1939 and interior rearranged.  NPS Restoration., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">300</container>
<unittitle encodinganalog="Title.folder">House at Lock 5 (gone)., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">301</container>
<unittitle encodinganalog="Title.folder">House at Lock 5 (gone)., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">302</container>
<unittitle encodinganalog="Title.folder">Inside of canal boat.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">303</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">304</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">305</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">306</container>
<unittitle encodinganalog="Title.folder">Houses.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">307</container>
<unittitle encodinganalog="Title.folder">Part of a house.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">308</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">309</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">310</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">311</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">312</container>
<unittitle encodinganalog="Title.folder">Lock House and Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">313</container>
<unittitle encodinganalog="Title.folder">House at Lock 16., <unitdate encodinganalog="Date.folder" type="inclusive">1938-1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">314</container>
<unittitle encodinganalog="Title.folder">House at Lock 12.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">315</container>
<unittitle encodinganalog="Title.folder">House at Lock 10.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">316</container>
<unittitle encodinganalog="Title.folder">Canal masonry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">317</container>
<unittitle encodinganalog="Title.folder">House at Lock 9.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">318</container>
<unittitle encodinganalog="Title.folder">House at Lock 8 framed by maple trees.  NPS Restoration., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">319</container>
<unittitle encodinganalog="Title.folder">Dick Hanes, Captain of Boat, no. 20.  Point of Rocks, MD. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">320</container>
<unittitle encodinganalog="Title.folder">John W. Ault, Lock Tender at Two Locks Above Harpers Ferry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">321</container>
<unittitle encodinganalog="Title.folder">Potomac Canal Boundary Marker near (1/4 mile above) Magazine Lock (Lock 6).  40' from river bank.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">322</container>
<unittitle encodinganalog="Title.folder">Man with model of canal barge.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">323</container>
<unittitle encodinganalog="Title.folder">Georgetown Incline.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">324</container>
<unittitle encodinganalog="Title.folder">Monocacy Aqueduct.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">325</container>
<unittitle encodinganalog="Title.folder">Monocacy Aqueduct.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">326</container>
<unittitle encodinganalog="Title.folder">Monocacy Aqueduct.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">327</container>
<unittitle encodinganalog="Title.folder">Monocacy Aqueduct.  February, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">328</container>
<unittitle encodinganalog="Title.folder">Building on masonry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">329</container>
<unittitle encodinganalog="Title.folder">Building on masonry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">330</container>
<unittitle encodinganalog="Title.folder">J.P. Mose, Boatman C&amp;O Canal.  December, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">331</container>
<unittitle encodinganalog="Title.folder">The railroad Lift Bridge at Williamsport, MD. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">332</container>
<unittitle encodinganalog="Title.folder">Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">333</container>
<unittitle encodinganalog="Title.folder">Lock.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">334</container>
<unittitle encodinganalog="Title.folder">Dam.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">335</container>
<unittitle encodinganalog="Title.folder">Old Dredge and barge between Chain Bridge and Lock 5., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">336</container>
<unittitle encodinganalog="Title.folder">Lewis Henry Crass (Buggs).  Catactin Lock #29. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">337</container>
<unittitle encodinganalog="Title.folder">Barge., <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">338</container>
<unittitle encodinganalog="Title.folder">R.P.C.  August 26, <unitdate encodinganalog="Date.folder" type="inclusive">1916</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">339</container>
<unittitle encodinganalog="Title.folder">Point of Rocks.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">340</container>
<unittitle encodinganalog="Title.folder">House., <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">341</container>
<unittitle encodinganalog="Title.folder">House in flood.  January, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">342</container>
<unittitle encodinganalog="Title.folder">Lock House on berm.  Lock tender operated Locks 47 and 48., <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">343</container>
<unittitle encodinganalog="Title.folder">Wooden building.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">344</container>
<unittitle encodinganalog="Title.folder">Lock House at Lock #51.  March, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">345</container>
<unittitle encodinganalog="Title.folder">Lock House at Lock #57.  March 25, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">346</container>
<unittitle encodinganalog="Title.folder">South Portal of Raw Paw Tunnel.  July, 9, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">347</container>
<unittitle encodinganalog="Title.folder">Harpers Ferry.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">348</container>
<unittitle encodinganalog="Title.folder">House of Lock 43., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">349</container>
<unittitle encodinganalog="Title.folder">Lock House 29.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">350</container>
<unittitle encodinganalog="Title.folder">Wooden House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">351</container>
<unittitle encodinganalog="Title.folder">House.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">352</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal near Great Falls.  Erosion of towpath below Lock #19.  March 30, <unitdate encodinganalog="Date.folder" type="inclusive">1936</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">353</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern and Lock 20.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">354</container>
<unittitle encodinganalog="Title.folder">Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">355</container>
<unittitle encodinganalog="Title.folder">Swain., <unitdate encodinganalog="Date.folder" type="inclusive">1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">356</container>
<unittitle encodinganalog="Title.folder">Lock House 70., <unitdate encodinganalog="Date.folder" type="inclusive">1992</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">357</container>
<unittitle encodinganalog="Title.folder">Lock House 72., <unitdate encodinganalog="Date.folder" type="inclusive">1992</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">358</container>
<unittitle encodinganalog="Title.folder">Lock House 70., <unitdate encodinganalog="Date.folder" type="inclusive">1992</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">359</container>
<unittitle encodinganalog="Title.folder">Skating at the Abner Cloud House on the C&amp;O Canal by Earl Minderman.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">360</container>
<unittitle encodinganalog="Title.folder">Image of barge on canal and train on bridge. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">361</container>
<unittitle encodinganalog="Title.folder">Lock #43., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">362</container>
<unittitle encodinganalog="Title.folder">Lock #42., <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">363</container>
<unittitle encodinganalog="Title.folder">Lock #74.  Middle Lock at the Narrows, Milepost 175.47. Historical photo 11004-21-G, Coal Co. Records, CA. Not drop gate at upper end of lock, <unitdate encodinganalog="Date.folder" type="inclusive">1900-1920</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">364</container>
<unittitle encodinganalog="Title.folder">Stone structure.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">365</container>
<unittitle encodinganalog="Title.folder">Stone structure.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">366</container>
<unittitle encodinganalog="Title.folder">Stone structure.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">21</container>
<container label="Folder" type="Folder">367</container>
<unittitle encodinganalog="Title.folder">Stone structure.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<container label="Box" type="Box">24</container>
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<unittitle encodinganalog="Title.folder">981-C&amp;O Canal Tow path south of Tunnel DEM, <unitdate encodinganalog="Date.folder" type="inclusive">1938</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal Clipper approaching Lock 6 from downstream L-3227-119 DEM September, <unitdate encodinganalog="Date.folder" type="inclusive">1942</unitdate></unittitle>

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<container label="Folder" type="Folder">55</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal in Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">56</container>
<unittitle encodinganalog="Title.folder">Mule and people, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">58</container>
<unittitle encodinganalog="Title.folder">Key Bridge - C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">59</container>
<unittitle encodinganalog="Title.folder">Tidelock, Potomac River, C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">60</container>
<unittitle encodinganalog="Title.folder">Lock in Georgetown October, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">61</container>
<unittitle encodinganalog="Title.folder">Key Bridge viewed from downstream; note floodwaters.  NSP WDC, <unitdate encodinganalog="Date.folder" type="inclusive">08/20/1955</unitdate></unittitle>

</did>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">62</container>
<unittitle encodinganalog="Title.folder">Wisconsin Avenue, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">63</container>
<unittitle encodinganalog="Title.folder">High Street (Wisconsin Avenue) Bridge Georgetown C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">64</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Marker Maryland State Agents, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">65</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Marker C&amp;O Canal Company, <unitdate encodinganalog="Date.folder" type="inclusive">1850</unitdate></unittitle>

</did>
</c01>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">66</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal in Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">67</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal in Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">68</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal in Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">69</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal in Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">70</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Pkwy. Old houses along towpath in Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">71</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal as graph, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">72</container>
<unittitle encodinganalog="Title.folder">Boat on water, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">73</container>
<unittitle encodinganalog="Title.folder">Washington Aqueduct Bridge at Rock Creek, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">74</container>
<unittitle encodinganalog="Title.folder">Rock Creek C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">75</container>
<unittitle encodinganalog="Title.folder">High Street (Wisconsin Ave.) over the Chesapeake and Ohio Canal.  Vigilant Firehouse (1825).  Photo by: Robert G. Johnsson, <unitdate encodinganalog="Date.folder" type="inclusive">1962</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">76</container>
<unittitle encodinganalog="Title.folder">Godey Lime Plant Washington, DC Rock Creek (C&amp;O Canal), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">77</container>
<unittitle encodinganalog="Title.folder">Rock Creek C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">78</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal towpath crossover Georgetown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">79</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Company Seal (reverse) Lock 16 (obverse), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">80</container>
<unittitle encodinganalog="Title.folder">Mule stables on Rock Creek C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">81</container>
<unittitle encodinganalog="Title.folder">Patowmack Company 1803 seal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">82</container>
<unittitle encodinganalog="Title.folder">Patowmack Company 1803 seal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">83</container>
<unittitle encodinganalog="Title.folder">Inspecting (Bruce McHenry) valve of old lock gate; lock 72; Chesapeake and Ohio Canal, Maryland photo by: Robert G. Johnsson, <unitdate encodinganalog="Date.folder" type="inclusive">1962</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">84</container>
<unittitle encodinganalog="Title.folder">Upstream (south) Portal of Paw Paw Tunnel, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">85</container>
<unittitle encodinganalog="Title.folder">Downstream view of house at Lock 7 (Glen Echo), <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">86</container>
<unittitle encodinganalog="Title.folder">House at Lock 8, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">87</container>
<unittitle encodinganalog="Title.folder">Lock and house on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">88</container>
<unittitle encodinganalog="Title.folder">Lock on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">89</container>
<unittitle encodinganalog="Title.folder">House on the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">90</container>
<unittitle encodinganalog="Title.folder">House at Lock 9, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">91</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal : Barge model stern view, port side March 23, <unitdate encodinganalog="Date.folder" type="inclusive">1954</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">92</container>
<unittitle encodinganalog="Title.folder">Upstream view of house at Lock 10, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">93</container>
<unittitle encodinganalog="Title.folder">Upstream view of lock 10, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">94</container>
<unittitle encodinganalog="Title.folder">982-C&amp;O Canal at Pawpaw Tunnel (Looking toward So., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">95</container>
<unittitle encodinganalog="Title.folder">Rocky Run culvert below Lock 11, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">96</container>
<unittitle encodinganalog="Title.folder">House at Lock 11, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">97</container>
<unittitle encodinganalog="Title.folder">Waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">98</container>
<unittitle encodinganalog="Title.folder">House at Lock 13, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">99</container>
<unittitle encodinganalog="Title.folder">House at Lock 14, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">100</container>
<unittitle encodinganalog="Title.folder">Field, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">101</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">102</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Lock 16 Lock house, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">103</container>
<unittitle encodinganalog="Title.folder">Mile Marker 9 miles to WC, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">104</container>
<unittitle encodinganalog="Title.folder">Waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">105</container>
<unittitle encodinganalog="Title.folder">House at Lock 17, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">106</container>
<unittitle encodinganalog="Title.folder">Canal Repair Wide Water L-3227-134, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">107</container>
<unittitle encodinganalog="Title.folder">Field L3233-25, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">108</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal Lock near Wide Water, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">109</container>
<unittitle encodinganalog="Title.folder">Stop lock above Lock 16, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">110</container>
<unittitle encodinganalog="Title.folder">House at Lock 18, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">111</container>
<unittitle encodinganalog="Title.folder">House at Lock 16, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">112</container>
<unittitle encodinganalog="Title.folder">Inlet culvert at Lock 17, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">113</container>
<unittitle encodinganalog="Title.folder">Waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">114</container>
<unittitle encodinganalog="Title.folder">Lock 18 Sept, <unitdate encodinganalog="Date.folder" type="inclusive">1964</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">115</container>
<unittitle encodinganalog="Title.folder">Log house south of Tavern at Great Falls about 1884, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">116</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern from the southwest, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">117</container>
<unittitle encodinganalog="Title.folder">1396 - C&amp;O Canal Pkwy Boating on canal above Great Falls, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">118</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern from landward side.  NCP 746 WDC August 24, <unitdate encodinganalog="Date.folder" type="inclusive">1947</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">119</container>
<unittitle encodinganalog="Title.folder">East side of Great Falls Tavern.  Wooden kitchen added 1926, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">120</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern (1828), <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">121</container>
<unittitle encodinganalog="Title.folder">Frame house #1 at Great Falls, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">122</container>
<unittitle encodinganalog="Title.folder">Log house, frame houses #1 and #2 at Great Falls (1884), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">123</container>
<unittitle encodinganalog="Title.folder">Frame house #2 at Great Falls, downstream view, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">124</container>
<unittitle encodinganalog="Title.folder">Flooded waterway, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">125</container>
<unittitle encodinganalog="Title.folder">House at Swains Lock (No. 21), <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">126</container>
<unittitle encodinganalog="Title.folder">Building next to C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">127</container>
<unittitle encodinganalog="Title.folder">North front of Great Falls Tavern (1832), <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">128</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: Lock 20 and Great Falls Tavern WDC September 18, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">129</container>
<unittitle encodinganalog="Title.folder">Log House at Lock 23 (violets) built on foundation of lock house, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">130</container>
<unittitle encodinganalog="Title.folder">G.F. md. autumn scene, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">131</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern and Lock winter scene, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">132</container>
<unittitle encodinganalog="Title.folder">Canal scene, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">133</container>
<unittitle encodinganalog="Title.folder">G.F. Tavern named "Crommelin House", <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">134</container>
<unittitle encodinganalog="Title.folder">Seneca Aqueduct (No. 1), <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">135</container>
<unittitle encodinganalog="Title.folder">Swinging bridge at Edwards Ferry (Lock 25), <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">136</container>
<unittitle encodinganalog="Title.folder">Bridge or aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">137</container>
<unittitle encodinganalog="Title.folder">Bridge or aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">138</container>
<unittitle encodinganalog="Title.folder">Lock on C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">139</container>
<unittitle encodinganalog="Title.folder">The Trojan and C&amp;O Canal at Sandy Hook, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">140</container>
<unittitle encodinganalog="Title.folder">Winch house and stop lock at Dam no. 4, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">141</container>
<unittitle encodinganalog="Title.folder">Canal Boat, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">142</container>
<unittitle encodinganalog="Title.folder">Lock #12 and lockkeepers house C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">143</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">144</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">145</container>
<unittitle encodinganalog="Title.folder">Aqueduct or Bridge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">146</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">147</container>
<unittitle encodinganalog="Title.folder">Aqueduct #11 over Evitts Creek C&amp;O Canal Cumberland, MD, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">148</container>
<unittitle encodinganalog="Title.folder">Canal boat scene, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">149</container>
<unittitle encodinganalog="Title.folder">Bridge or aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">150</container>
<unittitle encodinganalog="Title.folder">Aqueduct or bridge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">151</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal - Antietam Aqueduct DEM, <unitdate encodinganalog="Date.folder" type="inclusive">1939</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">152</container>
<unittitle encodinganalog="Title.folder">Aqueduct Apr 27, <unitdate encodinganalog="Date.folder" type="inclusive">1963</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">153</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">154</container>
<unittitle encodinganalog="Title.folder">Stone work, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">155</container>
<unittitle encodinganalog="Title.folder">Conococheague Aqueduct C&amp;O Canal Williamsport, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">156</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">157</container>
<unittitle encodinganalog="Title.folder">Canoe in front of aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">158</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: Dam #4 and Pot. R. overgrown.  Canal prism in middle ground NCP 773 WDC July 11, <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">159</container>
<unittitle encodinganalog="Title.folder">Old Canal Barge Ruins WDC September 5, <unitdate encodinganalog="Date.folder" type="inclusive">1951</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">160</container>
<unittitle encodinganalog="Title.folder">Dam 4 L-3233-54, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">161</container>
<unittitle encodinganalog="Title.folder">Wood work (possibly old canal barge ruins), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">162</container>
<unittitle encodinganalog="Title.folder">Old Canal Barge Ruins WDC, <unitdate encodinganalog="Date.folder" type="inclusive">09/05/1951</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">163</container>
<unittitle encodinganalog="Title.folder">Bridge (possibly Burnside Bridge) Apr, <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">164</container>
<unittitle encodinganalog="Title.folder">Model C&amp;O Canal boat hatches removed, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">165</container>
<unittitle encodinganalog="Title.folder">Wood work in a field, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">166</container>
<unittitle encodinganalog="Title.folder">Dam no. 4 May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">167</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">168</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">169</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">170</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">171</container>
<unittitle encodinganalog="Title.folder">Canal boat and mule near Williamsport, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">172</container>
<unittitle encodinganalog="Title.folder">Dam no. 4 May, <unitdate encodinganalog="Date.folder" type="inclusive">1974</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">173</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">174</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">175</container>
<unittitle encodinganalog="Title.folder">Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">176</container>
<unittitle encodinganalog="Title.folder">Wood work (possibly old canal barge ruins), <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">177</container>
<unittitle encodinganalog="Title.folder">Below Lock 38 Shepherdstown, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">178</container>
<unittitle encodinganalog="Title.folder">Cushwa Basin Williamsport, MD C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">179</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: Raleigh Benger, Sharpsburg, MD w/ barge model NCP 812 WDC, <unitdate encodinganalog="Date.folder" type="inclusive">03/23/1954</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">180</container>
<unittitle encodinganalog="Title.folder">Violets Lock, <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">181</container>
<unittitle encodinganalog="Title.folder">Seneca Aqueduct and Lock #24 C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">182</container>
<unittitle encodinganalog="Title.folder">Sunset on the Potomac Seneca, MD, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">183</container>
<unittitle encodinganalog="Title.folder">1962 hike Point of Rocks boat ramp dedication Geo Kline - Justice Douglas, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">184</container>
<unittitle encodinganalog="Title.folder">Ariel view of Great Falls Tavern area of the C&amp;O Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">185</container>
<unittitle encodinganalog="Title.folder">Douglas hike, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">186</container>
<unittitle encodinganalog="Title.folder">Cushwa's coal operation at Williamsport, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">187</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal barge being pulled by mules, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">188</container>
<unittitle encodinganalog="Title.folder">Round Top Kilns, <unitdate encodinganalog="Date.folder" type="inclusive">1959</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">189</container>
<unittitle encodinganalog="Title.folder">Canal boat near Cohill Station, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">190</container>
<unittitle encodinganalog="Title.folder">Outer walls and main gate, Fort Frederick, MD, near C&amp;O Canal NCP WDC, <unitdate encodinganalog="Date.folder" type="inclusive">09/11/1946</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">191</container>
<unittitle encodinganalog="Title.folder">Canal boat model, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">192</container>
<unittitle encodinganalog="Title.folder">Canal map, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">193</container>
<unittitle encodinganalog="Title.folder">Canal boats near Williamsport, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">194</container>
<unittitle encodinganalog="Title.folder">Cushwa's coal operation at Williamsport, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">195</container>
<unittitle encodinganalog="Title.folder">Old barge remains WDC, <unitdate encodinganalog="Date.folder" type="inclusive">09/05/1951</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">196</container>
<unittitle encodinganalog="Title.folder">Douglas Hike, <unitdate encodinganalog="Date.folder" type="inclusive">1959</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">197</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: start of Justice Douglas - Washington Post hike, Lock 72 NCP 788 WDC, <unitdate encodinganalog="Date.folder" type="inclusive">03/20/1954</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">198</container>
<unittitle encodinganalog="Title.folder">Building and Lock on Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">199</container>
<unittitle encodinganalog="Title.folder">Building and Lock on Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">200</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: Bow view barge model NCP 813 WDC, <unitdate encodinganalog="Date.folder" type="inclusive">03/23/1954</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">201</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal: Model of barge with its owner, Raleigh Bender NCP 811 WDC, <unitdate encodinganalog="Date.folder" type="inclusive">03/23/1954</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">202</container>
<unittitle encodinganalog="Title.folder">C 70 Canal field of wildflowers L-3227-70 DEM, <unitdate encodinganalog="Date.folder" type="inclusive">1943</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">203</container>
<unittitle encodinganalog="Title.folder">Building and Lock on Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">204</container>
<unittitle encodinganalog="Title.folder">Person on Barge, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">205</container>
<unittitle encodinganalog="Title.folder">Paw Paw Tunnel, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">206</container>
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<did>
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<did>
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<did>
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<container label="Folder" type="Folder">222</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">226</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">227</container>
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<did>
<container label="Box" type="Box">24</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">229</container>
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<did>
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<did>
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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">232</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">234</container>
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<did>
<container label="Box" type="Box">24</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">236</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">237</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">238</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">239</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">240</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">241</container>
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<did>
<container label="Box" type="Box">24</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">243</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">244</container>
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</did>
</c01>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">245</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">246</container>
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<container label="Box" type="Box">24</container>
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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">248</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">249</container>
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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">250</container>
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<did>
<container label="Box" type="Box">24</container>
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<did>
<container label="Box" type="Box">24</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">253</container>
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</did>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">254</container>
<unittitle encodinganalog="Title.folder">B&amp;O Railroad Dedication in Baltimore 4 July, <unitdate encodinganalog="Date.folder" type="inclusive">1828</unitdate></unittitle>

</did>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">255</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">256</container>
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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">257</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">258</container>
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<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">259</container>
<unittitle encodinganalog="Title.folder">Irish Fighting George Potter To the Golden Door, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">260</container>
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<container label="Folder" type="Folder">261</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">262</container>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">263</container>
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<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">264</container>
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</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">265</container>
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</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">266</container>
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</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">267</container>
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</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">268</container>
<unittitle encodinganalog="Title.folder">Typical C&amp;O Canal freight boat, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">269</container>
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</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">270</container>
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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">271</container>
<unittitle encodinganalog="Title.folder">Upstream face of Town Creek Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">272</container>
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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">273</container>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">274</container>
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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">275</container>
<unittitle encodinganalog="Title.folder">Conococheague Aqueduct, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">276</container>
<unittitle encodinganalog="Title.folder">Lock 18 Sept, <unitdate encodinganalog="Date.folder" type="inclusive">1964</unitdate></unittitle>

</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">277</container>
<unittitle encodinganalog="Title.folder">Hank Holland Fishing along Little Slackwater, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">278</container>
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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">279</container>
<unittitle encodinganalog="Title.folder">Lock 29 (Lander) Douglas Hike, <unitdate encodinganalog="Date.folder" type="inclusive">1962</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">280</container>
<unittitle encodinganalog="Title.folder">Canal Routes from The Erie Canal, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">281</container>
<unittitle encodinganalog="Title.folder">Canal boats near Williamsport, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">24</container>
<container label="Folder" type="Folder">282</container>
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<unittitle encodinganalog="Title.folder">Boarding the Sectional Canal boat at Philadelphia (Stock Exchange Corner).  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Typical three section boat.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Conemaugh Viaduct - a magnificent 80 foot span, destroyed by the Johnstown flood of 1889.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Typical aqueduct of the time Johnstown?  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Train passing under Skew Arch (incline plane #6) east of Cresson.  The wagon is traveling on the Huntington and Indiana Turnpike.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">One of the early railroad engines.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Staple Bend Tunnel - commonly called the Portage Tunnel.  It was the first railroad tunnel in the United States.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal tunnel at Tunnelton in Indiana County (East side). Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Weigh Lock at Johnstown.  Here the freight boats were weighed and the fee paid to the State's collector.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Aqueduct at Pittsburgh.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Canal Basin at Johnstown.  For the east bound traveler, the boats were floated onto railroad cars and began their rail journey over the mountains. Trains arriving from the east deposited the boats in the canal to continue their journey to Pittsburgh.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Cross section and average dimensions of canal.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal terminal at Pittsburgh.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Incline plane #6 near Cresson sectional canal boat ascending upgrade.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Incline plane #4 near Lilly.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">An example of the types of locks necessary on the canal. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Power house (hoist machinery) at the head of one of the inclined planes.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Incline plane at Belmont (Philadelphia).  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Style of coach used at one time on R.R.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Crossing the Juniata Aqueduct.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Double Lock at Perry Co. (Millerstown) (Rope Jenny). Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal merchant - local merchants objected to his method of selling.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Locking through.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Showing types of boats that traveled canal also housekeeping on board.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">At Huntington, PA.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Type of bunks in the canal boats as described by Dickens in his story.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Another type of canal boat.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal basin at Hollidaysburg.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Early railroad car from ads at the time.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Mule shoe - between Cresson and Hollidayburg.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Canal boat passing through a lock at Conemaugh gap at Johnstown Lock # 57.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A small aqueduct.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Loading pig iron.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Showing one method of towing boats (offset tow-point). Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">An immigrant boat.  Passage $5.00 - Philadelphia to Pittsburgh - without meals.  Local residents would throw stones and try to prevent boat from stopping over.  They thought the immigrants carried disease.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Aqueduct and tunnel at Tunnelton, PA (West end of tunnel).  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Wharves were built at loading points along the canal, but always on the berm side opposite the Towpath.  In spots without a wharf, where the boats could not be brought to the edge of the water, a plank was run ashore for picking up passengers or freight. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Inclined Plane #4.  This is a view looking west towards Lilly.  The length of the plane was 2194 feet and rose 187 feet.  Today this is a highway route from Lilly to Cresson.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The arrival of a passenger train at the head of a plane. The machinery for raising the train to the top of the plane is located underneath the building.  At Plane #8 the remains of a Heist House foundation can be seen today.  This was the longest plane -3116 ft. - and rose 307 ft.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A 'sectional boat' at Penn Lock at Harrisonburg.  It was here that the corner stone was laid for the first lock on March 14 1827.  Ground had been broken door the canal on July 4, 1826.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Summit House near Plane #5.  This was also a famous stopping place on the APRR.  The building is still in use (1966).  U.S. Route 22 passes directly in front of the Summit House.  The Hotel Register is preserved at the Baker Mansion, the headquarters of the Blair County Historical Society.  It contains many interesting entries.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A scene at the head of the planes.  Since there is an inn nearby it must be on the western slope of the mountain.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Allegheny Portage Railroad along the Conemaugh Gorge. This was also known as the long level - 13 ½ miles.  Charles Dickens gives a vivid description of this section in his American Notes.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A stop along the route at a nearby inn.  This was in the early days before locomotives were used.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The junction of the Philadelphia &amp; Columbia railroad and the Pennsylvania Canal at Columbia.  An inclined plane was also located in this area.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Hitching a section boat to the cable so that it may be hauled to the top of the plane.  This is the foot of Plane #8 and the stone culvert shown in this drawing is still visible today.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A Packet Boat passing a freight boat.  Packets had the right-of-way.  Scene is near the Packsaddle in the Blairsville area.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A delay caused by a break in the canal.  Many of the passengers took advantage of this to visit nearby inns and to see the country side.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Many of the communities along the canal were centers of boat-building.  This scene is near Blairsville.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Dauphin Narrows north of Harrisonburg on the Eastern Division of the canal.  Note that the telegraph was in use at the time.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The American House - one of the more important hotels of the Canal Era.  Located in Johnstown, it was built and in use before 1840.  It was not damaged by the floods of 1889 and 1936 and it is still in use - though its glory has long since passed. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Not all locks on the canal were used to raise and lower boats.  The one shown here is a control lock for controlling the level of the water in the canal. Dauphin- 1 mile south.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">When the navigation season ended due to the canal freezing, many of the boat owners lived in their boats.  The warehouses were filled with merchandise to be hauled after the first thaw.  The frozen canal provided great pleasure for the children. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Water was raised by bucket from the canal for those fastidious enough to want to wash up.  Drinking water was kept in a barrel filled from wells along the way. A metal dipper held by a chain served all.  Whiskey was sold on most boats for those unable to drink water.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The 'canalers' were a tough lot and fights were common. They fought for position at the canal locks and with the town bullies.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A freight boat leaving a lock.  The packet boat will soon be in the lock and then on its way east.  This scene is on the Juniata Division.  It is reported that it took four minutes for a boat to pass through a lock.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The end of a stretch of slack water navigation in the Pack Saddle.  The boat will soon be in the lock and on its way to Pittsburgh.  This drawing was made from a photograph taken in the 1870's.  The Pennsylvania Railroad is on the right - at the top of the hill.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The many types of boats used on the Pa. Canal.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A 'Winding Bridge' - given this name because the mules wound their way over the bridge.  This was necessary when the towpath changed from one side of the canal to the other.  It was done without unhitching.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Mountain House at Hollidaysburg.  This was one of the more famous inns along the canal and was located near the Basin.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Safety car.  An invention of one of the early engineers on the APRR.  If the cable broke (and it often did) the loaded car would be stopped by the weight applied to the safety car.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The flag signaling system used at many of the planes to indicate how many passengers wanted to order dinner at the next inn.  The flag was raised once for each five diners.  Final instructions were sent by a boy on horseback to the innkeeper.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">A Towpath Bridge.  This was also used when the towpath crossed from one side to the other - similar to slide 263 (number on slide).  However, this bridge was for road traffic also.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">At 6:00 AM the sleeping shelves were removed and tables assembled for the serving of breakfast.  From 12 to 36 passengers sat down for the meals.  Food was placed on table in big platters, each passenger helping himself.  Dickens cites elaborate menus - tea, coffee, bread, butter, salmon, shad, liver, steak, potatoes, pickles, ham, and chop black puddings, sausages.  The cook was usually a free Negro.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The arrival of the first boat.  In many communities this called for a celebration...as reported in the newspapers of towns along the Juniata Division. Parade with flag.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Aqueduct at Newport.  The design is very similar to others along the canal.  However, the timbers were probably used as shoring when a weakness developed.  Cast iron plates were also reported to be used.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Skew Arch.  Incline Plane #6 went through the arch and the Huntington, Indiana Turnpike went over it.  It is well preserved today and is part of a small park.  The National Historical Site will include this area.  The wedge driver is shown in this drawing - he drove the wedges daily to keep the rails in the chairs.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Basin at Hollidaysburg.  Note the passengers leaving the packet boat to board the train for the trip over the mountain to Johnstown.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Foot of the Belmont plane near Philadelphia.  It was here that a locomotive took over when the engine in the hoist house failed, proving that locomotives could be used on steep grades.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">"Low Bridge" - everybody down.  This call was necessary when the canal boat passed under a bridge.  Dickens gives a good description of the actions of the steerman and the passengers in his American Notes.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Traveling through the tunnel at Tunnelton.  There were two tunnels on the Western Division.  Shortly after this tunnel was built it had to be lined with brick as it continued to have rock falls.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The stone ties, chairs and rail as used on the Portage Railroad.  The stone ties were 2' x 2' and 18 inches high with two holes drilled and plugged.  They cost $.53 each and weighed 600 to 700 pounds.  The chairs weighed 13 lbs. While the rails weighed 42 lbs. Per yard.  The early rails were rolled in England.  Later they were made in Pennsylvania. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The Lift Lock below the double lock at Millerstown.  In the distance can be seen the rope ferry and the double lock.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">This illustrates the type of construction on the various incline planes of the A.P.R.R.  The information is from the reports of Sylvester Welsh, employed by the Canal Commissioners as "Principal Engineer."  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The canal was built by human sweat!  The pick, shovel and wheel barrow were the tools used.  Plows and scrapers were also used.  Yet the canal was completed in good time.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Trouble!  Cars had difficulty making the short radius turnouts on Basin St.  (Later called Railroad St.) to warehouses.  Story in History of Cabris County says "Track turnouts were designed for the short 4 wheel cars.  Later the 8 wheel cars had difficulty in making the turnouts."  On the Main Portage Railroad 442 feet was the minimum radius, but most curves exceeded 950 ft.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Viaduct across the Beaverton at Hollidaysburg.  Similar in design to the Ebensburg Viaduct (Slide No. 290).  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">When opened the Columbia and Philadelphia railroad consisted only of the state built and operated trackage.  The cars were operated by individuals and private companies.  Private operation of the rolling stock created so much confusion and difficulties that the state soon took over complete operation of the road and replaced horses with steam locomotives which were then being developed.  Very ornate stagecoach type car and horses. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Human muscle moved boats in Johnstown Basin: 2 men with 20ft. long poles.  Sometimes there were as many as 30 boats in the Basin at one time.  Barrels were much in use, since many commodities were easily shipped in barrels which were made in large quantities.  Every village was likely to have a cooper.  Remember when crackers came in a barrel? Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">The state was finding that the process of taking section boats apart placing them in and out of the water was a burdensome process.  The state developed a new type of boat, Car Box Boat that would carry about 10 sealed boxes.  The boxes could be transferred by crane to Portage cars without breaking seals could carry greater tonnage with cheaper handling.  In recent years the Pennsylvania Railroad used the same system.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Diagram of Hoist Engine originally designed by Edward Miller and built in Pittsburgh 1832.  Reconstructed from written records.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Villages grew along the Portage railroad where trains were likely to stop (wood or coaling stations or water) permitting passengers to get a meal (a drink could be gotten also).  Lilly, Portage, Half Way House a Summerhill, Cresson, Wilmore, Settlements near Johnstown or Hollidayburg not likely to have inns.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">All aboard!  Blairsville and points west through to Pittsburgh.  One or two boats per day usually left in the morning.  Most passengers spent the previous night in hotels, there were about a dozen in Johnstown.  Portage railroad did not run at night.  Passengers from arriving boats could go aboard trains.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Unloading Borden Car at warehouse.  Some days as many as 30 boats waiting for loading or unloading.  A busy place, in summer manual labor in demand.  In winter little work available except for repair work in State Shop.  The many hotels (about a dozen) surrounding the Basin catered to passengers and local workers.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Boats over the mountains, Astonishing!  Hauling section boat to Johnstown crossing the Ebensburg Viaduct (at Wilmore) 40 ft. span Semi elliptical arch 10' rise, 27 ft.  from rail to water.  Width of Viaduct 25' 10" (for two tracks).  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">This diagram based on written descriptions by S. Welch, Chief Engineer of the project.  The excavations at the Lemon House by Temple University summer of 1968 may make some changes necessary.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Picking up freight along the line.  A turnout for loading and unloading at a village.  The Portage opened backwoods mountain area to an outlet for their farm and other products.  Before the Portage the best way to ship their wheat and corn was as whiskey. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Explosion of Engine Bushhill April 23, 19=847.  On the 13 mile level (2) ¼ mile east of the tunnel force of stream turned engine over and backwards crushing tender and freight car against dome.  Engineer James Patterson killed, two others badly hurt. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Fog in mountain valleys slowed travel rate.  It interfered with operation of planes also.  Sometimes in early October or late April snow would create a similar scene, except for foliage and snow on the ground.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Boiler Room from reports of S. Welch:  At Plane #8 3,116 ft. long (plane operation 352 ft./min.) takes 9 min. to move cars bottom to top requires 60 gals. of water as steam burns about 6# coal per min.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Building based on several of paintings at Head Houses. Machinery on Mr. Welch's reports: 2 engines but only one used, other is a spare.  Same arrangement for boilers but had probably a connection to permit any boiler with either engine.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Big Wheels at head of planes each 8 ft. diameter. Horizontal sheave 9'7" diameter. 22 ½ "- 3" diameter ropes. As conceived from original description. 30 H.P. at planes 2-5-9-10.  35 H.P. at planes 1-3-4-6-7 &amp; 8.  2 cylinder stream engine 14" or 15" x 60" stroke 14 RPM.  One engine on each side but only one engine operates, other is a spare Clutch couplings connect either.  Horizontal sheave can drift 15ft. to take up slack and keep rope taut moved by weight hanging in pit.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Big Wheels at head of planes each 8 ft. diameter. Horizontal sheave 9'7" diameter. 22 ½ "- 3" diameter ropes. As conceived from original description. 30 H.P. at planes 2-5-9-10.  35 H.P. at planes 1-3-4-6-7 &amp; 8.  2 cylinder stream engine 14" or 15" x 60" stroke 14 RPM.  One engine on each side but only one engine operates, other is a spare Clutch couplings connect either.  Horizontal sheave can drift 15ft. to take up slack and keep rope taut moved by weight hanging in pit.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Passenger and freight transportation company had relay stations where horses were changed. Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Section Boats loaded and unloaded local shipments only. The advantage the section boats had in transporting cargoes that were carried over mountains without being broken open.  Allegheny Portage Railroad slides drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Passenger and Burden Car used on the Allegheny Portage Railroad 1834-35.  4 wheels.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Using a chain stop to fasten car to wire rope for hauling on the various planes.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">State owned cars 1843.  8 wheels.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Packet Boats operated day and night.  Rules required 2 lights fore and aft.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Incline Plane No. 1 East of Johnstown.  Hoist House in front of the Staple Bend Tunnel.  Tunnel still standing (1972.)  Bethlehem Steel now has a 48" waterline running through tunnel.  Pennsylvania Canal drawing by P.J. Hoffman P.E., <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Staple Bend Tunnel and Hoist House.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">State owned tracks, rolling stock was privately owned, Philadelphia to Belmont Incline.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Crew laying track for the Allegheny Portage Railroad, Hollidaysburg to Johnstown, along the various levels.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Norris Locomotive The Geo. Washington 1836 The Bush Hill 1837.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Hitching at the 'Foot of the Plane' using a braided hemp rope called a 'Stop', made from an old sketch and shows Iron Rails on the plane instead of wood timber with iron strap.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Water for drinking was usually provided in a barrel, a dipper or spigot was provided.  Many boats had a small bar near the kitchen, served by the cook, where drinks stronger than water could be had.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Packet on the Penna. Canal passing Rockville Bridge crossing of Penna. Railroad over the Susquehanna River 1857-59.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">257</container>
<unittitle encodinganalog="Title.folder">Looking for a seat in a car for travel over the Allegheny Portage Railroad.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">258</container>
<unittitle encodinganalog="Title.folder">A 3 hammer forge along the canal.  Many forges used Juniata iron, were steam driven when water was not available.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">259</container>
<unittitle encodinganalog="Title.folder">Drawing lots for a berth.  (Dickens American notes.) Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">260</container>
<unittitle encodinganalog="Title.folder">Drawing of Early Coach (Railway) 1832 Philadelphia 1832. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">261</container>
<unittitle encodinganalog="Title.folder">Barrels were much in use, many commodities were most easily shipped in barrels which were made in large quantities.  Every village was likely to have a cooper.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">262</container>
<unittitle encodinganalog="Title.folder">The Chimneys of the Steam Tags are jointed and in passing a viaduct the upper part is turned down, which allows the smoke to rush out at so small a height as to envelope the whole train in a dense and noisy cloud "Prolix".  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">263</container>
<unittitle encodinganalog="Title.folder">Probable method of signaling to top of plane when cars were ready to be hauled.  William Strickland saw this in England when visiting to see improvements for Penna. 1836.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">264</container>
<unittitle encodinganalog="Title.folder">Viaduct crossing the Schuylkill 984 ft. long from an old sketch.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">265</container>
<unittitle encodinganalog="Title.folder">The Jigger man important job, se "Canal Currents," 'Whiskey on the Canal.'  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">266</container>
<unittitle encodinganalog="Title.folder">Rainy Day diversion, sometimes unharmonious. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">267</container>
<unittitle encodinganalog="Title.folder">Using horses to haul passenger cars on a level before 1836.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">268</container>
<unittitle encodinganalog="Title.folder">Cars descending Plane 6, Skew Arch. Conestoga Wagon traveling Huntingdon Indiana Turnpike.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">269</container>
<unittitle encodinganalog="Title.folder">A family boat, usually a freighter, stables on boat runs during daylight only, wife cooks, keeps house, husband steers heavy work, boy drives and steers. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">270</container>
<unittitle encodinganalog="Title.folder">Method of replacing tow cables on Rope Ferry. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">271</container>
<unittitle encodinganalog="Title.folder">Activity in Johnstown Basin.  Two men could pole boats, sometimes as many as 30 boats in basin at one time.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">272</container>
<unittitle encodinganalog="Title.folder">Passing an iron works, slack water Western Division. This type of furnace went out with passing of the canal.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">273</container>
<unittitle encodinganalog="Title.folder">Part of the Salt Works along the Western Division. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">274</container>
<unittitle encodinganalog="Title.folder">Many coal drifts in the hillsides, not mined commercially until after 1830.  Later one of the important items transported by canal.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">275</container>
<unittitle encodinganalog="Title.folder">Salt refineries along the Western Division of the Canal. The well, pump and boiling pans.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">276</container>
<unittitle encodinganalog="Title.folder">Some mines along the Western Division delivered coal by chutes directly into boats, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">277</container>
<unittitle encodinganalog="Title.folder">On a cold rainy day passengers pass time of day inside the cabin.  Politics usually debated among male passengers.  Here the politician holds forth. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">278</container>
<unittitle encodinganalog="Title.folder">Stone splitting quarries were near where the work was being done.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">279</container>
<unittitle encodinganalog="Title.folder">On both sides of the Kiskiminitis River from Blairsville west many salt wells and refineries, visible to canal travelers.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">280</container>
<unittitle encodinganalog="Title.folder">The aqueduct at Tunnelton from an old photo.  Penna. Canal aqueduct across Conemaugh River between Livermore and Tunnelton.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">281</container>
<unittitle encodinganalog="Title.folder">"Ladies, ladies Please!  "Harriet Beecher Stowe." Excitement and chaos in the Ladies Section: Getting ready for bed.  Me sleep up there!  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">282</container>
<unittitle encodinganalog="Title.folder">The aqueduct of Freeport, across the Allegheny River. Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">283</container>
<unittitle encodinganalog="Title.folder">The Baldwin Locomotive "The Lancaster" used on the Columbia Railroad.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">284</container>
<unittitle encodinganalog="Title.folder">Typical construction of Lock gate.  The paddle is usually below the water level when it is opened.  Pennsylvania Canal drawing by P.J. Hoffman P.E, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">285</container>
<unittitle encodinganalog="Title.folder">Aqueduct and Catholic College, Georgetown.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">286</container>
<unittitle encodinganalog="Title.folder">Alexandria Canal Aqueduct, Georgetown.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">287</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal above Georgetown.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">288</container>
<unittitle encodinganalog="Title.folder">C&amp;O Canal above Georgetown.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">289</container>
<unittitle encodinganalog="Title.folder">Aqueduct.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">290</container>
<unittitle encodinganalog="Title.folder">Alexandria Canal Aqueduct, Georgetown.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">291</container>
<unittitle encodinganalog="Title.folder">Aqueduct.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">292</container>
<unittitle encodinganalog="Title.folder">Historical Canal.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">293</container>
<unittitle encodinganalog="Title.folder">Canal site aerial shot.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">294</container>
<unittitle encodinganalog="Title.folder">Tidelock Northwell.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">295</container>
<unittitle encodinganalog="Title.folder">Aqueduct canal.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">296</container>
<unittitle encodinganalog="Title.folder">Canal lock.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">297</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">298</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">299</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">300</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">301</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">302</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">303</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">304</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">305</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">306</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">25</container>
<container label="Folder" type="Folder">307</container>
<unittitle encodinganalog="Title.folder">Canal site.  Excavation of the Tidelock Alexandria Canal in, <unitdate encodinganalog="Date.folder" type="inclusive">1982</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">26</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Notecards by mile file, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
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<container label="Box" type="Box">26</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Notecareds by subject file, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">26</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Miss, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">27</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Notecards of Boatmen A-Z, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<c01 level="file">
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<container label="Box" type="Box">27</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Notecards of Locktenders, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">27</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Notecards ofPersonalities, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">27</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">Notecards of other then boatmen/locktenders A-Z, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">27</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Notecards of Personalities other than boatmen/locktenders A-Z, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">28</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Notecards by Canal boats A-Z, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">28</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Notecards  by Mile &amp; Subject, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">29</container>
<container label="Folder" type="Folder">1</container>
<unittitle encodinganalog="Title.folder">Two illustrations: The rebels retreating with their plunder across the Potomac River and The rebels destroying the Chesapeake and Ohio Canal.  Harper's Weekly, <unitdate encodinganalog="Date.folder" type="inclusive">1864</unitdate></unittitle>

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<container label="Box" type="Box">29</container>
<container label="Folder" type="Folder">2</container>
<unittitle encodinganalog="Title.folder">Antietam Aqueduct.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">29</container>
<container label="Folder" type="Folder">3</container>
<unittitle encodinganalog="Title.folder">Lock tender and his family in front of his house. n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">29</container>
<container label="Folder" type="Folder">4</container>
<unittitle encodinganalog="Title.folder">Lock tenders house.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">29</container>
<container label="Folder" type="Folder">5</container>
<unittitle encodinganalog="Title.folder">Great Falls Tavern.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<container label="Box" type="Box">29</container>
<container label="Folder" type="Folder">6</container>
<unittitle encodinganalog="Title.folder">Hikers on the C&amp;O Canal.  n.d, <unitdate encodinganalog="Date.folder" type="inclusive">undated</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Catoctin Furnace, MD (photorevised in 1979), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Cherry Run, MD-WV-PA, <unitdate encodinganalog="Date.folder" type="inclusive">1951</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Clear Spring, MD-PA (photorevised in 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1955</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Cumberland, MD-PA-WV, 2 maps, <unitdate encodinganalog="Date.folder" type="inclusive">1949</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Evitts Creek, MD-PA-WV, <unitdate encodinganalog="Date.folder" type="inclusive">1949</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Funkstown, MD (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Hagerstown, MD-PA (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Hancock, WV-MD-PA (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1951</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Hughesville, MD (photorevised 1974), <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: La Plata, MD (photorevised 1985), <unitdate encodinganalog="Date.folder" type="inclusive">1956</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Mason-Dixon, MD-PA copy 1 (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Mason-Dixon, MD-PA copy 2 (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Middletown, MD (photorevised 1979), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Myersville, MD (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Oldtown, MD-WV, <unitdate encodinganalog="Date.folder" type="inclusive">1950</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Patterson Creek, MD-WV, <unitdate encodinganalog="Date.folder" type="inclusive">1949</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Point of Rocks, MD-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1955</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Poolesville, MD-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1952</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Popes Creek, MD (photorevised 1974), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Seneca, MD-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Smithburg, MD-PA (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Washington, DC-MD-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Williamsport, MD-WV, <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Maryland: Williamsport, MD-WV (photorevised 1971), <unitdate encodinganalog="Date.folder" type="inclusive">1953</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Pennsylvania: Big Cove Tannery, PA (photorevised 1973), <unitdate encodinganalog="Date.folder" type="inclusive">1967</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Pennsylvania: Greencastle, PA (photorevised 1973), <unitdate encodinganalog="Date.folder" type="inclusive">1944</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Pennsylvania: Masontown, PA (photorevised 1979), <unitdate encodinganalog="Date.folder" type="inclusive">1964</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Pennsylvania: Williamson, PA (photorevised 1973), <unitdate encodinganalog="Date.folder" type="inclusive">1944</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Virginia Falls Church, VA-MD, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Virginia Hayfield, VA (photorevised 1972), <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Virginia Middletown, VA (photorevised 1972), <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Virginia Mount Vernon, VA-MD (photorevised 1983), <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Virginia Sterling, VA-MD, <unitdate encodinganalog="Date.folder" type="inclusive">1968</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">Virginia White Hall, VA-WV, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<container label="Folder" type="Folder">49</container>
<unittitle encodinganalog="Title.folder">West Virginia: Big Pool, WV-MD copy 1, <unitdate encodinganalog="Date.folder" type="inclusive">1958</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Big Pool, WV-MD copy 2, <unitdate encodinganalog="Date.folder" type="inclusive">1958</unitdate></unittitle>

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<container label="Folder" type="Folder">51</container>
<unittitle encodinganalog="Title.folder">West Virginia: Capon Bridge, WV-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Cresaptown, WV-MD, <unitdate encodinganalog="Date.folder" type="inclusive">1949</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Glengary, WV-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Great Cacapon, WV-MD, <unitdate encodinganalog="Date.folder" type="inclusive">1958</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Hedgesville, WV-MD, <unitdate encodinganalog="Date.folder" type="inclusive">1979</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Inwood, WV-VA (photorevised 1979), <unitdate encodinganalog="Date.folder" type="inclusive">1966</unitdate></unittitle>

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<did>
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<unittitle encodinganalog="Title.folder">West Virginia: Lake Lynn, PA-WV (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Levels, WV, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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<did>
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<unittitle encodinganalog="Title.folder">West Virginia: Masontown, WV (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

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<did>
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<unittitle encodinganalog="Title.folder">West Virginia: Middleway, WV, <unitdate encodinganalog="Date.folder" type="inclusive">1978</unitdate></unittitle>

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<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">61</container>
<unittitle encodinganalog="Title.folder">West Virginia: Morgantown, WV-PA (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

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<unittitle encodinganalog="Title.folder">West Virginia: Morgantown, WV (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1957</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">63</container>
<unittitle encodinganalog="Title.folder">West Virginia: Osage, WV-PA (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1958</unitdate></unittitle>

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<did>
<container label="Box" type="Box">30</container>
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<unittitle encodinganalog="Title.folder">West Virginia: Paw Paw, WV-MD, <unitdate encodinganalog="Date.folder" type="inclusive">1950</unitdate></unittitle>

</did>
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<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
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<unittitle encodinganalog="Title.folder">West Virginia: Petersburg, WV, <unitdate encodinganalog="Date.folder" type="inclusive">1969</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">66</container>
<unittitle encodinganalog="Title.folder">West Virginia: Ridge Quadrangle, WV-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1965</unitdate></unittitle>

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<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">67</container>
<unittitle encodinganalog="Title.folder">West Virginia: Rivesville, WV (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1960</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">68</container>
<unittitle encodinganalog="Title.folder">West Virginia: Romney Quadrangle, WV, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
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<container label="Folder" type="Folder">69</container>
<unittitle encodinganalog="Title.folder">West Virginia: Round Hill, WV-VA, <unitdate encodinganalog="Date.folder" type="inclusive">1970</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">70</container>
<unittitle encodinganalog="Title.folder">West Virginia: Smithburg, WV (photorevised 1976), <unitdate encodinganalog="Date.folder" type="inclusive">1961</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">71</container>
<unittitle encodinganalog="Title.folder">West Virginia: Springfield, WV copy 1, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">72</container>
<unittitle encodinganalog="Title.folder">West Virginia: Springfield, WV copy 2, <unitdate encodinganalog="Date.folder" type="inclusive">1973</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
<container label="Folder" type="Folder">73</container>
<unittitle encodinganalog="Title.folder">West Virginia: Stotlers, WV, <unitdate encodinganalog="Date.folder" type="inclusive">1958</unitdate></unittitle>

</did>
</c01>

<c01 level="file">
<did>
<container label="Box" type="Box">30</container>
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<unittitle encodinganalog="Title.folder">West Virginia: Tablers, WV, <unitdate encodinganalog="Date.folder" type="inclusive">1972</unitdate></unittitle>

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</c01>

<c01 level="file">
<did>
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