The Thresher (Houston, Tex.), Vol. 6, No. 31, Ed. 1 Friday, May 6, 1921, newspaper, May 6, 1921; (https://texashistory.unt.edu/ark:/67531/metapth229891/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .