Armored Sentinel (Temple, Tex.), Vol. 19, No. 15, Ed. 1 Friday, July 21, 1961, newspaper, July 21, 1961; (https://texashistory.unt.edu/ark:/67531/metapth254683/m1/10/: accessed April 28, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .