Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 109, Ed. 1 Wednesday, May 7, 1980, newspaper, May 7, 1980; (https://texashistory.unt.edu/ark:/67531/metapth824408/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .