San Antonio Register (San Antonio, Tex.), Vol. 10, No. 10, Ed. 1 Friday, April 5, 1940, newspaper, April 5, 1940; (https://texashistory.unt.edu/ark:/67531/metapth399510/m1/4/: accessed June 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .