El Paso Herald (El Paso, Tex.), Ed. 1, Tuesday, May 21, 1918, newspaper, May 21, 1918; (https://texashistory.unt.edu/ark:/67531/metapth138638/m1/1/: accessed May 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .