Cedar Hill Citizen (Cedar Hill, Tex.), Vol. 1, No. 28, Ed. 1 Thursday, March 16, 1972, newspaper, March 16, 1972; (https://texashistory.unt.edu/ark:/67531/metapth586301/m1/1/: accessed June 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .