Polk County Enterprise (Livingston, Tex.), Vol. 98, No. 39, Ed. 1 Sunday, May 18, 1980, newspaper, May 18, 1980; (https://texashistory.unt.edu/ark:/67531/metapth781744/m1/6/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .