Twelfth Armored Division Association (U.S.). Hellcat News, (Springfield, Ill.), Vol. 33, No. 1, Ed. 1, September 1978, newspaper, September 1978; (https://texashistory.unt.edu/ark:/67531/metapth410259/m1/18/: accessed November 17, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .