Denton Record-Chronicle (Denton, Tex.), Vol. 60, No. 299, Ed. 1 Sunday, July 21, 1963, newspaper, July 21, 1963; (https://texashistory.unt.edu/ark:/67531/metapth1517650/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .