Denton Record-Chronicle (Denton, Tex.), Vol. 61, No. 199, Ed. 1 Wednesday, April 1, 1964, newspaper, April 1, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1594504/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .