The Optimist (Abilene, Tex.), Vol. 7, No. 22, Ed. 1, Thursday, May 6, 1920, newspaper, May 6, 1920; (https://texashistory.unt.edu/ark:/67531/metapth91175/m1/1/: accessed May 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .