Polk County Enterprise (Livingston, Tex.), Vol. 85, No. 29, Ed. 1 Thursday, March 23, 1967, newspaper, March 23, 1967; (https://texashistory.unt.edu/ark:/67531/metapth781672/m1/2/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .