Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 104, No. 27, Ed. 1 Thursday, March 15, 1979, newspaper, March 15, 1979; (https://texashistory.unt.edu/ark:/67531/metapth1330325/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .