Author
ADC (Firm)
21
Rand McNally and Company
15
Smith, J. L.
11
Alexandria Drafting Company
6
Hawley, Joseph R. 1826-1905
6
Long, John Hamilton
6
American Automobile Association
5
KuÌmmerly + Frey
5
Charles D. Hevenor Company
4
DeLorme Mapping Company
4
Geological Survey (U.S.)
4
Krebs, Charles G.
4
Lindenkohl, A.
4
National Geographic Society (U.S.) Cartographic Division
4
Philadelphia Transportation Company
4
Tanner, Henry Schenck, 1786-1858
4
U.S. Coast and Geodetic Survey
4
United States National Park Service
4
Bachmann, John
3
Barnes, R. L.
3
E.P. Noll & Co
3
Gardner, David E.
3
Hallwag AG
3
Hartranft, Rufus C.
3
John Bartholomew & Co. (Publishers)
3
Jonathan Sheppard Books
3
MacInnes, Sharon Cook
3
Melish
3
Mitchell
3
Mitchell, S. Augustus 1792-1868
3
National Geographic Society (U.S.)
3
Nicholson, W. L.
3
Southeastern Pennsylvania Transportation Authority
3
United States Bureau of the Census
3
United States Coast Survey
3
Weinberg, Allen
3
Bache, A. D. 1806-1867
2
Big Bus Company of Pennsylvania
2
C.S. Hammond & Company
2
Cappon, Lester Jesse, 1900-
2
Colton
2
Colton, J. H.
2
Cruchley, G. F.
2
Daly, John, 1934-
2
Delaware County (Pa.) ADC (Firm)
2
DenBoer, Gordon
2
Esselte kartor (Firm)
2
Fairmount Park Commission (Philadelphia, Pa.)
2
Fendall, C.
2
Flach, R.
2
more ...