The Shamrock Texan (Shamrock, Tex.), Vol. 36, No. 20, Ed. 1 Monday, July 17, 1939, newspaper, July 17, 1939; (https://texashistory.unt.edu/ark:/67531/metapth528579/m1/1/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .