The Optimist (Abilene, Tex.), Vol. 51, No. 25, Ed. 1, Friday, April 24, 1964, newspaper, April 24, 1964; (https://texashistory.unt.edu/ark:/67531/metapth99345/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .