The South Texas Archives and Special Collections, a division of the James C. Jernigan Library of Texas A&M University–Kingsville, was established to preserve and to make available to the public documentary materials about the history and natural history of South Texas. The Archives are housed in Baugh Hall with the entrance facing Richard Street. Offices are located on the second floor.
Although the South Texas Archives were not officially created until 1981, the systematic accumulation of historical documents was started by Professor John E. Conner when he joined the Department of History shortly after the creation of the South Texas State Teachers College.
More information on the Wikipedia page [1]
The website is [2].