Cedar Hill Chronicle (Cedar Hill, Tex.), Vol. 5, No. 13, Ed. 1 Thursday, August 21, 1969, newspaper, August 21, 1969; (https://texashistory.unt.edu/ark:/67531/metapth480315/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .