Valley Sunday Star-Monitor-Herald (Harlingen, Tex.), Vol. 3, No. 41, Ed. 1 Sunday, April 21, 1940, newspaper, April 21, 1940; (https://texashistory.unt.edu/ark:/67531/metapth1327154/m1/1/: accessed June 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .