The War Whoop (Abilene, Tex.), Vol. 45, No. 2, Ed. 1, Wednesday, September 20, 1967, newspaper, September 20, 1967; (https://texashistory.unt.edu/ark:/67531/metapth104042/m1/1/: accessed May 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .