The Optimist (Abilene, Tex.), Vol. 62, No. 3, Ed. 1, Friday, September 20, 1974, newspaper, September 20, 1974; (https://texashistory.unt.edu/ark:/67531/metapth91838/m1/1/: accessed May 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .