La Prensa (San Antonio, Tex.), Vol. 4, No. 552, Ed. 1 Thursday, May 18, 1916, newspaper, May 18, 1916; (https://texashistory.unt.edu/ark:/67531/metapth1067109/m1/3/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .