Amarillo Daily News (Amarillo, Tex.), Vol. 12, No. 125, Ed. 1 Wednesday, June 1, 1921, newspaper, June 1, 1921; (https://texashistory.unt.edu/ark:/67531/metapth318866/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .