Amarillo Daily News (Amarillo, Tex.), Vol. 11, No. 120, Ed. 1 Sunday, March 21, 1920, newspaper, March 21, 1920; (https://texashistory.unt.edu/ark:/67531/metapth318498/m1/3/: accessed June 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .