Keys, Clarke. Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 154, Ed. 1 Sunday, June 29, 1980, newspaper, June 29, 1980; (https://texashistory.unt.edu/ark:/67531/metapth823398/m1/1/: accessed October 17, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .