Tance, Aria	5-30-1936	Electrocuted	Harris	Huntsville, TX	168	Murder
Teague, Delbert Jr.	9-9-1998	Lethal Injection	Tarrant	Huntsville, TX	849	Rape
Teel, Jerry	4-24-1890	Lynched	San Augustine	San Augustine, TX	n/a
Terrill, Virgil	4-1-1938	Electrocuted	Gregg	Huntsville, TX	189	Rape
Thomas, Buck	11-29-1916	Lynched	Red River	Clarksville, TX	n/a
Thomas, Clarence	12-15-1933	Electrocuted	Hunt	Huntsville, TX	124	Murder
Thomas, Garrett	8-3-1928	Electrocuted	Live Oak	Huntsville, TX	53	Murder
Thompson, John	7-8-1987	Lethal Injection	Bexar	Huntsville, TX	610	Robbery
Thompson, Theodore	6-20-1958	Electrocuted	Dallas	Huntsville, TX	407	Rape
Tigner, Gerald	3-7-2002	Lethal Injection	McLennan	Huntsville, TX	999099	Multi-murder
Tilford, Fred	7-9-1926	Electrocuted	Navarro	Huntsville, TX	34	Murder
Trammell, Luke	8-20-1937	Electrocuted	Brazoria	Huntsville, TX	187	Murder
Trapper, John	8-14-1935	Electrocuted	Uvalde	Huntsville, TX	155	Murder
Trevino, Joe	8-18-1999	Lethal Injection	Tarrant	Huntsville, TX	767	Rape
Tucker, Jeffrey E.	11-14-2001	Lethal Injection	Parker	Huntsville, TX	952	Robbery
Tucker, Karla Faye	3-2-1998	Lethal Injection	Harris	Huntsville, TX	777	Robbery
Turner, C. L.	9-2-1942	Electrocuted	Dallas	Huntsville, TX	249	Murder
Turner, Jessell	9-22-1997	Lethal Injection	Harris	Huntsville, TX	895	Robbery
Tuttle, Charles	7-1-1999	Lethal Injection	Smith	Huntsville, TX	999183	Murder
Twitty, Lavannie	6-5-1925	Electrocuted	Dallas	Huntsville, TX	17	Murder
Twitty, Moncus	4-24-1931	Elctrocuted	Gray	Huntsville, TX	84	Rape

Sources:
Texas Department of Criminal Justice Home Page for executions after 1977.  
The Rope, The Chair, And The Needle by James W. Marquart, ©1994, University of Texas Press for those executions before 1977.
Without Sanctuary by James Allen and John Littlefield, © 2000, for early lynchings in Texas.