The Rule Review (Rule, Tex.), Vol. 61, No. 8, Ed. 1 Thursday, July 20, 1967, newspaper, July 20, 1967; (https://texashistory.unt.edu/ark:/67531/metapth982336/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .