Slater, H. D. El Paso Herald (El Paso, Tex.), Ed. 1, Saturday, August 25, 1917, newspaper, August 25, 1917; (https://texashistory.unt.edu/ark:/67531/metapth139140/m1/28/: accessed October 15, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .