Amarillo Daily News (Amarillo, Tex.), Vol. 11, No. 163, Ed. 1 Tuesday, May 11, 1920, newspaper, May 11, 1920; (https://texashistory.unt.edu/ark:/67531/metapth318541/m1/4/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .