Twelfth Armored Division Association (U.S.). Hellcat News, (Kirkland, Wash.), Vol. 36, No. 8, Ed. 1, April 1982, newspaper, April 1982; (https://texashistory.unt.edu/ark:/67531/metapth410676/m1/1/: accessed April 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .