Slater, H. D. El Paso Herald (El Paso, Tex.), Ed. 1, Friday, December 10, 1920, newspaper, December 10, 1920; (https://texashistory.unt.edu/ark:/67531/metapth143822/m1/1/: accessed April 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .