La Prensa (San Antonio, Tex.), Vol. 8, No. 2,171, Ed. 1 Saturday, March 19, 1921, newspaper, March 19, 1921; (https://texashistory.unt.edu/ark:/67531/metapth1069628/m1/2/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .