Denton Record-Chronicle (Denton, Tex.), Vol. 54, No. 216, Ed. 1 Sunday, April 14, 1957, newspaper, April 14, 1957; (https://texashistory.unt.edu/ark:/67531/metapth1458794/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .