Cedar Hill Chronicle (Cedar Hill, Tex.), Vol. 17, No. 36, Ed. 1 Thursday, May 21, 1981, newspaper, May 21, 1981; (https://texashistory.unt.edu/ark:/67531/metapth714547/m1/1/: accessed May 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .