Slater, H. D. El Paso Herald (El Paso, Tex.), Ed. 1, Monday, December 18, 1911, newspaper, December 18, 1911; (https://texashistory.unt.edu/ark:/67531/metapth137141/m1/1/: accessed July 20, 2017), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .