Slater, H. D. El Paso Herald (El Paso, Tex.), Ed. 1, Wednesday, December 18, 1912, newspaper, December 18, 1912; (https://texashistory.unt.edu/ark:/67531/metapth130635/m1/1/: accessed February 15, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .