Mt. Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 91, No. 25, Ed. 1 Thursday, March 17, 1966, newspaper, March 17, 1966; (https://texashistory.unt.edu/ark:/67531/metapth1278318/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .