Čechoslovák and Westske Noviny (West, Tex.), Vol. 38, No. 17, Ed. 1 Friday, April 26, 1957, newspaper, April 26, 1957; (https://texashistory.unt.edu/ark:/67531/metapth783055/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .