El Paso Morning Times (El Paso, Tex.), Vol. 36TH YEAR, Ed. 1, Monday, April 30, 1917, newspaper, April 30, 1917; (https://texashistory.unt.edu/ark:/67531/metapth198054/m1/1/: accessed December 14, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .