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Contributors
in General Maps
Contributors:
1 - 66
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United States. National Park Service
[150]
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Geological Survey (U.S.)
[62]
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Pennsylvania. Bureau of Topographic and Geologic Survey
[55]
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United States. Army. Corps of Engineers. Pittsburgh District
[32]
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Townsend, L. Kenneth
[16]
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Casady, Chris
[8]
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United States. Forest Service
[8]
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United States. Forest Service. Eastern Region
[8]
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United States. Army. Corps of Engineers. Baltimore District
[7]
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United States. Army. Corps of Engineers
[5]
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Holme, Thomas
[4]
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Harris, John
[3]
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Lea, Philip
[3]
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Browne, Christopher
[2]
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Delaware & Lehigh National Heritage Corridor, Inc
[2]
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Fillmore, Millard
[2]
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Geological Survey of Pennsylvania
[2]
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Howell, Reading
[2]
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Lay, Amos
[2]
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Melish, John
[2]
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Rogers, Henry D. (Henry Darwin)
[2]
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Tanner, Benjamin
[2]
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United States. Army. Corps of Engineers. Philadelphia District
[2]
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United States. Bureau of the Census
[2]
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United States. Department of the Interior. Southwestern Pennsylvania Heritage Preservation Commission
[2]
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United States. Soil Conservation Service
[2]
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W. & A.K. Johnston Limited
[2]
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Aero Service (Firm)
[1]
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America's Industrial Heritage Project
[1]
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Bingham, William
[1]
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Brown, Amos P. (Amos Peaslee)
[1]
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Bucks County Tourist Commission
[1]
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C.S. Hammond & Company
[1]
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Campbell, John H.
[1]
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Delaware and Lehigh Navigation Canal National Heritage Corridor Commission
[1]
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Desilver, Charles
[1]
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Dixon, Jeremiah
[1]
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Eastern National Park and Monument Association
[1]
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Elverson, J. S.
[1]
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Emery Walker Limited
[1]
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Faden, William
[1]
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George Barrie & Sons
[1]
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Gettysburg Foundation
[1]
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Gettysburg National Military Park (Agency : U.S.)
[1]
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Greene, Robert
[1]
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Hamm, Phineas Eldridge
[1]
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Harris, Thaddeus Mason
[1]
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Herline & Hensel
[1]
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J.H. Colton & Co
[1]
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John C. Clark & Son
[1]
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Kearny, Francis
[1]
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Kennedy, A. W.
[1]
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Kennedy, Robert
[1]
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Knight, J.
[1]
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Krebs, Otto
[1]
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Lehigh Coal and Navigation Company
[1]
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Lesley, J. P. (J. Peter)
[1]
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Lessing J. Rosenwald Collection (Library of Congress)
[1]
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Lotter, Tobias Conrad
[1]
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Lyman, Benjamin Smith
[1]
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Lyne, James
[1]
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Mason, Charles
[1]
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Mitchell, S. Augustus (Samuel Augustus)
[1]
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Moll, Herman
[1]
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P.S. Duval & Son
[1]
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Paris, Ferdinand John
[1]