Author
ADC (Firm)
26
Rand McNally and Company
17
Beers, F. W.
16
Smith, J. L.
15
Bromley, George Washington
14
Baist, G. Wm. 1859-1927
12
Library of Congress. Map Division
12
Carey, Mathew, 1760-1839
11
G.M. Hopkins & Co
11
Library of Congress. Geography and Map Division
11
Alexandria Drafting Company
10
Hopkins, Griffith Morgan, Jr
10
Nichols, Beach
10
Phillips, Philip Lee, 1857-1924
10
Thomas Holme, d. 1695
10
A.H. Mueller & Co
8
Bromley, Walter Scott
8
Geological Survey (U.S.)
8
Pennsylvania. Department of Conservation and Natural Resources
8
Beers, D. G.
7
Long, John Hamilton
7
Mueller, A. H.
7
Smith, Elvino V., 1870-1932
7
DeLorme Mapping Company
6
Hawley, Joseph R. 1826-1905
6
Historical Society of Pennsylvania
6
Kiser, Ellis
6
Pennsylvania
6
Philadelphia Transportation Company
6
Tanner, Henry Schenck, 1786-1858
6
Barnes, R. L.
5
Caldwell, J. A.
5
G.W. Bacon and Co. (Publishers)
5
Gardner, David E.
5
John Hills
5
Lindenkohl, A.
5
Melish, John, 1771-1822
5
Mitchell, S. Augustus 1792-1868
5
Morse, Jedidiah, 1761-1826
5
Pennsylvania. Bureau of Topographic and Geologic Survey
5
Phlash (Firm : Philadelphia, Pa.)
5
Scott, James D.
5
Thomas Hutchins, 1730-1789
5
U.S. Coast and Geodetic Survey
5
American Automobile Association
4
American Geographical Society of New York
4
Charles D. Hevenor Company
4
Cumming, William Patterson, 1900-
4
E.P. Noll & Co
4
Everts & Stewart
4
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