Author
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Clark, David T.
1
Cohen, Charles Joseph, 1847-
1
Connelly, Chuck, 1955-
1
Convention of Delegates from the Thirteen Original States Philadelphia)
1
Cope Linder Associates
1
Crompton, Robert Donald
2
Crosscup & West
3
Crowell, Charles
1
Cunningham, George Hamilton
1
D.G. Wilson, J. Childs Co
1
DFN Gallery
1
Dan Slovic & Associates
1
De Graw, P. V., 1853-1914
1
Delaware County Historical Society
1
Delaware. Bureau of Archaeology and Historic Preservation
1
Delaware. Division of Highways. Location and Environmental Studies Office
1
Delta Group (Firm)
1
Develin, R.
1
Devereux
1
Diffenderffer, Frank Ried, 1833-1921
2
E.A. Wright;
1
Experience
1
Faust, F.n
1
Fenner, Sears & Co
1
Fischer, Joseph
1
Francis Bros
1
Fraternal Order of Eagles
1
Frederic R. Kirkland Collection
1
Free Library
1
Garrow, Patrick H.
1
Geddes Brecher Qualls Cunningham: Architects
1
Geographia Map Company
2
Geographical Directories Co
1
Gerard, James W. 1823-1900
1
Gilbert & Gihon
1
Gillon, Edmund Vincent
1
Green, Doron, 1868-
1
Grenald Associates
1
Griffin, Martin I. J.
1
Gross, Alexander, 1879-1958
2
Gutekunst
1
Habben, F. H.
1
Hall, Louis Williams, 1833-
1
Hammett, Barnabas
1
Harland Bartholomew & Associates
1
Harrisburg (Pa.),
1
Harrison & Newhall
1
Hartranft, E. S.
1
Hartranft, Rufus C.
6
Heisey, Martin Luther, 1881-1964
2
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