Twelfth Armored Division Association (U.S.). Hellcat News, (Skokie, Ill.), Vol. 23, No. 4, Ed. 1, December 1968, newspaper, December 1968; (https://texashistory.unt.edu/ark:/67531/metapth410498/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .