Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 91, No. 4, Ed. 1 Thursday, October 22, 1964, newspaper, October 22, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1277593/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .