- Stuart, John, 1718-17791
- T. J. Mellard, Notary1
- Tennent, William, 1837-18931
- Thornton, John, 1641-17081
- Tutte, Vic1
- U.S. Coast and Geodetic Survey1
- Underwood & Underwood1
- Underwood & Underwood (Publishers )1
- Underwood, Dave1
- United States Coast Survey1
- United States Coast Survey (Cartographer)1
- United States. Army. Corps of Engineers1
- United States. Dept. of Agriculture. Production and Marketing Administration1
- United States. General Land Office (publisher)1
- United States. Soil Conservation Service1
- Walker, Peter1
- Walton, Bill C. (Photographer)1
- Ware & Pickle Co.1
- Warren, Duke1
- Whitford, Reid1