Ramsey, Sumner M. Amarillo Daily News (Amarillo, Tex.), Vol. 11, No. 167, Ed. 1 Saturday, May 15, 1920, newspaper, May 15, 1920; (https://texashistory.unt.edu/ark:/67531/metapth318545/m1/1/: accessed October 19, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .