Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 101, No. 16, Ed. 1 Thursday, January 1, 1976, newspaper, January 1, 1976; (https://texashistory.unt.edu/ark:/67531/metapth1281457/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .