Rio Grande Herald (Rio Grande City, Tex.), Vol. 21, No. 34, Ed. 1 Thursday, August 24, 1972, newspaper, August 24, 1972; (https://texashistory.unt.edu/ark:/67531/metapth194369/m1/1/: accessed May 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .