Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 105, No. 50, Ed. 1 Thursday, August 14, 1980, newspaper, August 14, 1980; (https://texashistory.unt.edu/ark:/67531/metapth1336093/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .