Armored Sentinel (Temple, Tex.), Vol. 26, No. 23, Ed. 1 Friday, June 21, 1968, newspaper, June 21, 1968; (https://texashistory.unt.edu/ark:/67531/metapth254987/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .