Author
Chamber of Commerce of Greater Philadelphia
3
Pleasants, Henry, 1853-1884
3
Chesapeake and Delaware Canal Company
2
Darby Monthly Meeting of Friends (Hicksite : 1827-1955)
2
Delaware County Historical Society
2
Delaware River Port Authority
2
Gilbert Cope Historical and Genealogical Collection
2
Penjerdel (Corporation)
2
Philadelphia (Pa.). Department of Wharves, Docks and Ferries
2
Smith, George, 1804-1882
2
Stonehurst Hills United Methodist Church (Upper Darby, Pa.)
2
U.S Board of Engineers for Rivers and Harbors
2
Allen, Clifford P. 1841-
1
Appalachian Mountain Club. Delaware Valley Chapter
1
Asbell & Associates
1
Becker, Marshall Joseph
1
Bicycle Coalition of the Delaware Valley (Philadelphia, Pa.)
1
Bjorkman, Gwen Boyer, 1933-
1
Brown, Stewardson, 1867-1921
1
Carey, Mathew, 1760-1839
1
Case, Robert P.
1
Cochran, Saml. J.
1
Concerned Citizens of the Delaware Valley
1
Cronin, Ellen M.
1
Cummin, Katharine Hewitt
1
Dale, James W. 1812-1881
1
Dallett, Francis James, 1927-
1
Day, W. H.
1
Delaware Bridge Joint Commission of the States of Pennsylvania and New Jersey
1
Delaware County (Pa.). Planning Department
1
Delaware County Community College (Pa.)
1
Delaware County Historical Society (Media, Pa.)
1
Delaware County Historical Society (Pa.)
1
Delaware County Institute of Science (Delaware County, Pa.)
1
Delaware County Institute of Science (Media, Pa.)
1
Delaware County Pro-Life Coalition (Havertown, Pa.)
1
Delaware and Schuylkill Canal Company
1
Dorst, John Darwin
1
Eschenmann, Hayes R.
1
Federal Reserve Bank of Philadelphia. Research Department
1
Fell, Derek
1
George de Benneville Keim Collection
1
Glenn, Thomas Allen, 1864-
1
Harding, John J.
1
Healy, Joseph W.
1
Hotchkin, S. F. 1833-1912
1
J.E. Caldwell & Company (Philadelphia, Pa.)
1
Keller, Ida Augusta
1
Klein, William M.
1
Knopp, Andrew F., Jr
1
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