- Darley, James M. (James Morrison)20
- Royal Geographical Society (Great Britain)20
- Gannett, Henry, 1846-191419
- Sayer, Robert, 1725-179419
- Norris Peters Co18
- Anville, Jean Baptiste Bourguignon d', 1697-178217
- London Topographical Society17
- Arnold, Robert M.--Ownership15
- Colton, J. H. (Joseph Hutchins), 1800-189315
- Robert Laurie and James Whittle15
- Texas. Highway Dept15
- August Gast & Co14
- Edinburgh Geographical Institute14
- G.W. & C.B. Colton & Co14
- Geological Survey of Canada14
- Graham, C. B. (Curtis B.)14
- Northern Pacific Railroad Company--Maps14
- U.S. Coast and Geodetic Survey14
- United States. Army. Corps of Topographical Engineers14
- United States. Army. Corps of Engineers13