- Thomas, Copperthwait & Co. (Philadelphia, Pa.)1
- Thomas, Edward Lloyd, Sectional Surveyor1
- Thomas, Grigsby E.1
- Thompson, Gains1
- Thomson, John, active 19th century1
- Threlkeld, William H.1
- Tippins, J. A.1
- Toccoa Pharmacy1
- Tom Jones Pub.1
- Townsend, John1
- Triplett, Thomas T.1
- Trippe, Turner H.1
- Turner, J. A. S.1
- Underwood, W. H.1
- United Staes. Bureau of the Census1
- Vinson, Tully1
- Walker, John D.1
- Waller, Charles R.1
- Walter H. Miller & Co.1
- Ward, Horace R.1
