Ramsey, Sumner M. Amarillo Daily News (Amarillo, Tex.), Vol. 11, No. 129, Ed. 1 Thursday, April 1, 1920, newspaper, April 1, 1920; (https://texashistory.unt.edu/ark:/67531/metapth318507/m1/1/: accessed November 21, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .