Polk County Enterprise (Livingston, Tex.), Vol. 82, No. 46, Ed. 1 Thursday, July 23, 1964, newspaper, July 23, 1964; (https://texashistory.unt.edu/ark:/67531/metapth781409/m1/3/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .