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- United States. Army Map Service95
- Great Britain. War Office. General Staff. Geographical Section43
- National Geographic Society (U.S.). Cartographic Division19
- National Geographic Society (U.S.). Cartographic Section17
- United States. Army. Corps of Engineers9
- Great Britain. Inter-service Topographical Dept8
- Manila Fire Insurance Association8
- Ringgold, Cadwalader, 1802-18678
- U.S. Coast and Geodetic Survey7
- United States. Adjutant-General's Office. Military Information Division6
- United States. Office of Strategic Services. Research and Analysis Branch6
- United States. General Land Office4
- Great Britain. Army. Middle East Forces3
- National Geographic Society (U.S.)3
- Bumstead, Albert H. (Albert Hoit), 1875-19402
- Darley, James M. (James Morrison)2
- Freyhold, Edward2
- Great Britain. Royal Air Force. Central Interpretation Unit2
- Mulford, John C2
- Norris Peters Co2