The Daily Express. (San Antonio, Tex.), Vol. 41, No. 294, Ed. 1 Sunday, October 21, 1906, newspaper, October 21, 1906; (https://texashistory.unt.edu/ark:/67531/metapth441117/m1/1/: accessed December 16, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .