Cedar Hill Chronicle (Cedar Hill, Tex.), Vol. 4, No. 13, Ed. 1 Thursday, August 15, 1968, newspaper, August 15, 1968; (https://texashistory.unt.edu/ark:/67531/metapth480308/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .