The Shamrock Texan (Shamrock, Tex.), Vol. 36, No. 64, Ed. 1 Monday, December 18, 1939, newspaper, December 18, 1939; (https://texashistory.unt.edu/ark:/67531/metapth528101/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .