Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 105, No. 4, Ed. 1 Thursday, October 4, 1979, newspaper, October 4, 1979; (https://texashistory.unt.edu/ark:/67531/metapth1330356/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .