De Leon Free Press (De Leon, Tex.), Vol. 74, No. 42, Ed. 1 Thursday, April 9, 1964, newspaper, April 9, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1261821/m1/4/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .