Rio Grande Herald (Rio Grande City, Tex.), Vol. 35, No. 19, Ed. 1 Thursday, February 24, 1977, newspaper, February 24, 1977; (https://texashistory.unt.edu/ark:/67531/metapth194600/m1/1/: accessed May 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .