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Slater, H. D. El Paso Herald (El Paso, Tex.), Ed. 1, Saturday, June 26, 1920, newspaper, June 26, 1920; (https://texashistory.unt.edu/ark:/67531/metapth137705/m1/3/: accessed January 21, 2017), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .