Author
United States. Federal Highway Administration
62
Delaware. Division of Highways. Location and Environmental Studies Office
57
Delaware. Bureau of Archaeology and Historic Preservation
52
Custer, Jay F., 1955-
30
Philadelphia Record
25
Camden and Amboy Railroad and Transportation Company
23
Philadelphia Transportation Company
23
Southeastern Pennsylvania Transportation Authority
19
Association of American Railroads
18
George A. Foreman, 1881-1950
18
Catts, Wade P.
12
Bachman, David C.
11
Philadelphia Rapid Transit Company
11
Delaware. Department of Transportation. Division of Planning. Location and Environmental Studies Office
10
Delaware. State Historic Preservation Office
10
Pennsylvania. Department of Transportation
10
Philadelphia Board of Trade
10
Grettler, David J.
9
Carey, Henry Charles, 1793-1879
8
Coleman, Ellis C.
8
Heite, Edward F.
8
Pennsylvania Railroad
8
Shank, William H.
8
U.S Federal Highway Administration
8
Baltimore and Ohio Railroad Company
7
Delaware and Raritan Canal Company
7
Historical Society of Pennsylvania
7
New Jersey Railroad and Transportation Company
7
Philadelphia (Pa.). Urban Traffic and Transportation Board
7
Camden and Amboy Railroad and Transportation Co
6
Delaware Bureau of Archaeology and Historical Preservation
6
Delaware and Raritan Canal Company (N.J.)
6
Delaware. Department of Transportation
6
Hoseth, Angela
6
Jackson, Joseph, 1867-1946
6
New Jersey
6
Penn Dept. of Community Affairs
6
Penn Dept. of Transportation
6
Association of American Railroads. Railroad Committee for the Study of Transportation
5
Philadelphia (Pa.) Urban Traffic and Transportation Board
5
Stockton, Robert Field, 1795-1866
5
Bowers, Martha H.
4
Delaware. Division of Highways
4
Hodny, Jay
4
New Jersey. Court of Errors and Appeals
4
Pennsylvania Historical and Museum Commission
4
Pennsylvania Public Utility Commission
4
Unknown author
4
Watson, Scott C.
4
Atterbury, William Wallace, 1866-1935
3
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