Twelfth Armored Division Association (U.S.). Hellcat News, (Skokie, Ill.), Vol. 23, No. 10, Ed. 1, June 1969, newspaper, June 1969; (https://texashistory.unt.edu/ark:/67531/metapth410377/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .