The Simmons Brand (Abilene, Tex.), Vol. 5, No. 24, Ed. 1, Saturday, March 19, 1921, newspaper, March 19, 1921; (https://texashistory.unt.edu/ark:/67531/metapth97783/m1/1/: accessed May 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .