Creator
- Tirion, Isaak, -17691
- Tokyo (Japan : Fu)1
- Tomble, Fremont J., land office manager.1
- Towar, F. M.1
- Tozenʼan Tetsu, active 19th century. http://id.loc.gov/authorities/names/n810064421
- Traver, George W.1
- Trouvelot, L.1
- Tsukada, Itoku.1
- U.S. Lake Survey1
- United States Coast Survey1
- United States Pacific Railroad Expeditions and Surveys1
- United States. Bureau of Indian Affairs1
- United States. Bureau of Ordnance and Hydrography1
- United States. General Land Office. Drafting Division.1
- United States. National Park Service1
- United States. Post Office Department http://id.loc.gov/authorities/names/n80013583 http://viaf.org/viaf/1558686701
- United States. Surveyor General of New Mexico1
- United States. Topographical Bureau.1
- United States. War Department. Engineer Bureau.1
- United States. War Dept. Corps of Topographical Engineers.1