Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 103, Ed. 1 Wednesday, April 30, 1980, newspaper, April 30, 1980; (https://texashistory.unt.edu/ark:/67531/metapth824688/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .