- U. S. Geological Survey (Washington, D.C.) (2)
- U.S. Army (Washington, D.C) (1)
- U.S. Army Corps of Topographical Engineers (Washington, D.C) (1)
- U.S. Army? (Washington, D.C.?) (1)
- U.S. Bureau of Mines? (Washington, D.C.?) (1)
- U.S. Bureau of Public Roads (Washington, D.C) (1)
- U.S. Bureau of Reclamation (Washington, D.C) (1)
- U.S. Bureau of Soils (Washington, D.C) (4)
- U.S. Bureau of Soils (Washington, D.C.) (1)
- U.S. Bureau of the Census (Washington, D.C) (1)
- U.S. Coast Survey (Washington) (1)
- U.S. Coast Survey (Washington, D.C) (2)
- U.S. Coast and Geodetic Survey (Washington) (1)
- U.S. Coast and Geodetic Survey (Washington, D.C) (2)
- U.S. Coast and Geodetic Survey Office (Washington) (1)
- U.S. Congress; Washington, D.C. 1863 (1)
- U.S. Department of Agriculture (Washington, D.C) (1)
- U.S. Department of Agriculture, Soil Conservation Service (Washington, D.C) (3)
- U.S. Dept. Of Agriculture, Soil Conservation Service (Washington.?) (1)
- U.S. Dept. of Agriculture (Washington, D.C.?) (2)
