Revista Del Valle (Edinburg, Tex.), Vol. 1, No. 50, Ed. 1 Sunday, May 16, 1915, newspaper, May 16, 1915; (https://texashistory.unt.edu/ark:/67531/metapth850372/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .