The Dublin Progress (Dublin, Tex.), Vol. 79, No. 50, Ed. 1 Thursday, May 4, 1967, newspaper, May 4, 1967; (https://texashistory.unt.edu/ark:/67531/metapth539844/m1/1/: accessed September 22, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .