- National Geographic Society (U.S.). Cartographic Division (6)
- United States Coast Survey (6)
- United States. Army. Office of the Chief of Engineers (6)
- United States. Bureau of Reclamation (6)
- United States. Post Office Department (6)
- Vallejos Z., Camilo (6)
- Young, J. H. (James Hamilton) (6)
- Bartholomew, J. G. (John George), 1860-1920 (5)
- Berthrong, I. P (5)
- Chamberlin, Thomas Chrowder, 1843-1928 (5)
- Cram, George Franklin, 1841-1928 (5)
- Geological Survey of New Jersey (5)
- J.H. Colton & Co. (5)
- Jansson, Jan, 1588-1664 (5)
- Mitchell, S. Augustus (Samuel Augustus), 1792-1868 (5)
- Society for the Diffusion of Useful Knowledge (Great Britain) (5)
- United States Reclamation Service (5)
- United States. Army. Corps of Engineers (5)
- Walling, Henry Francis, 1825-1888 (5)
- White, James, 1863-1928 (5)