El Regidor. (San Antonio, Tex.), Vol. 16, No. 716, Ed. 1 Thursday, May 21, 1903, newspaper, May 21, 1903; (https://texashistory.unt.edu/ark:/67531/metapth193219/m1/1/: accessed April 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .