The Ennis Daily News (Ennis, Tex.), Vol. 76, No. 95, Ed. 1 Saturday, April 20, 1968, newspaper, April 20, 1968; (https://texashistory.unt.edu/ark:/67531/metapth1650177/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .