Cedar Hill Chronicle (Cedar Hill, Tex.), Vol. 2, No. 51, Ed. 1 Thursday, May 11, 1967, newspaper, May 11, 1967; (https://texashistory.unt.edu/ark:/67531/metapth523023/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .