Mailing Address: Box T-0690 Stephenville, TX 76402 Location: Barry B. Thompson Student Center, Room 32 The Barry B. Thompson Student Center can be seen on the interactive map. Phone: (254) 968-9082 To contact the Student Government Association, please fill out the following form. Fields marked * are required for submission. This form is in adherence with the Tarleton Privacy Policy, as specified on the University Web Guidelines.