Denton Record-Chronicle (Denton, Tex.), Vol. 65, No. 272, Ed. 1 Sunday, June 16, 1968, newspaper, June 16, 1968; (https://texashistory.unt.edu/ark:/67531/metapth1594616/m1/2/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .