Bus, Daniel W. The Ennis Daily News (Ennis, Tex.), Vol. 66, No. 129, Ed. 1 Friday, May 31, 1957, newspaper, May 31, 1957; (https://texashistory.unt.edu/ark:/67531/metapth786118/m1/1/: accessed October 23, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .