San Antonio Register (San Antonio, Tex.), Vol. 1, No. 21, Ed. 1 Friday, August 28, 1931, newspaper, August 28, 1931; (https://texashistory.unt.edu/ark:/67531/metapth390329/m1/1/: accessed April 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .