Amarillo Daily News (Amarillo, Tex.), Vol. 12, No. 81, Ed. 1 Saturday, April 9, 1921, newspaper, April 9, 1921; (https://texashistory.unt.edu/ark:/67531/metapth318821/m1/1/: accessed May 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .