Čechoslovák and Westske Noviny (West, Tex.), Vol. 29, No. 13, Ed. 1 Friday, March 29, 1940, newspaper, March 29, 1940; (https://texashistory.unt.edu/ark:/67531/metapth394260/m1/7/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .