The Optimist (Abilene, Tex.), Vol. 50, No. 27, Ed. 1, Friday, May 10, 1963, newspaper, May 10, 1963; (https://texashistory.unt.edu/ark:/67531/metapth99319/m1/8/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .