The Humble Echo (Humble, Tex.), Vol. 23, No. 8, Ed. 1 Thursday, February 20, 1964, newspaper, February 20, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1036687/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .