Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 92, No. 13, Ed. 1 Thursday, December 22, 1966, newspaper, December 22, 1966; (https://texashistory.unt.edu/ark:/67531/metapth1278351/m1/1/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .