San Antonio Register (San Antonio, Tex.), Vol. 9, No. 2, Ed. 1 Friday, April 14, 1939, newspaper, April 14, 1939; (https://texashistory.unt.edu/ark:/67531/metapth398402/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .