Stephenville Empire-Tribune (Stephenville, Tex.), Vol. 111, No. 220, Ed. 1 Sunday, May 4, 1980, newspaper, May 4, 1980; (https://texashistory.unt.edu/ark:/67531/metapth1249102/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .