Author
Pennsylvania
19
Philadelphia Record
12
ADC (Firm)
9
Pittsburgh and Steubenville Rail Road Company
8
Rand McNally and Company
8
Albertype Co
6
American Automobile Association
6
Melish, John, 1771-1822
5
Pennsylvania. Department of Highways
5
Hamilton Library Association, Carlisle, Pa
4
Kümmerly + Frey
4
Mairs Geographischer Verlag
4
Munsell, Joel, 1808-1880
4
United States. Federal Highway Administration
4
United States. President (1801-1809 : Jefferson)
4
Biddle, Charles E
3
Delaware. Division of Highways. Location and Environmental Studies Office
3
Faris, John Thomson, 1871-1949
3
Florence and Keyport Company
3
Hallwag AG
3
Irvin, Harold C
3
Mitchell, D.
3
Old York Road Historical Society (Jenkintown, Pa.)
3
Pennsylvania Historical and Museum Commission
3
Robinson, Moncure, 1802-1891
3
Williams, John S.
3
Bald Eagle Plank Road Company
2
Bell, D. Sargent, 1876-194-
2
Bellas, Hugh, 1780-1863
2
Beyer, George R.
2
Briggs, Isaac, 1775-1862
2
Brown, Roy M.
2
Bureau of Municipal Research (Philadelphia, Pa.)
2
Camden County Historical Society
2
Carey, Mathew, 1760-1839
2
Chiriqui Improvement Company
2
Colles, Christopher, 1738-1816
2
Colles, Christopher, 1738-1821
2
Dale, Bruce
2
Danville and Pottsville Rail Road Company
2
Dawes, Rumford
2
DeLorme Mapping Company
2
Decker, Amelia Stickney
2
Decker, Amelia Stickney, 1876-
2
Delaware General Assembly House of Representatives Committee to Investigate the Loan to the Philadelphia, Wilmington and Baltimore Railroad Company
2
Delaware. Bureau of Archaeology and Historic Preservation
2
Diffenderffer, Frank Ried, 1833-1921
2
Dollarhide, William
2
Esselte kartor (Firm)
2
Foreman, Harry E.
2
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