Denton Record-Chronicle (Denton, Tex.), Vol. 61, No. 224, Ed. 1 Thursday, April 30, 1964, newspaper, April 30, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1594576/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .