The Plano Star-Courier (Plano, Tex.), Vol. 42, No. 11, Ed. 1 Friday, April 22, 1921, newspaper, April 22, 1921; (https://texashistory.unt.edu/ark:/67531/metapth570349/m1/4/: accessed November 14, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .