San Antonio Express. (San Antonio, Tex.), Vol. 54, No. 121, Ed. 1 Saturday, May 3, 1919, newspaper, May 3, 1919; (https://texashistory.unt.edu/ark:/67531/metapth430789/m1/5/: accessed February 22, 2020), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .