Polk County Enterprise (Livingston, Tex.), Vol. 105, No. 57, Ed. 1 Thursday, July 16, 1987, newspaper, July 16, 1987; (https://texashistory.unt.edu/ark:/67531/metapth810770/m1/26/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .