Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 104, Ed. 1 Thursday, May 1, 1980, newspaper, May 1, 1980; (https://texashistory.unt.edu/ark:/67531/metapth824080/m1/1/: accessed June 19, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .