Amarillo Daily News (Amarillo, Tex.), Vol. 11, No. 146, Ed. 1 Wednesday, April 21, 1920, newspaper, April 21, 1920; (https://texashistory.unt.edu/ark:/67531/metapth318524/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .