The Thresher (Houston, Tex.), Vol. 6, No. 30, Ed. 1 Friday, April 29, 1921, newspaper, April 29, 1921; (https://texashistory.unt.edu/ark:/67531/metapth229890/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .