Rio Grande Herald (Rio Grande City, Tex.), Vol. 33, No. 15, Ed. 1 Thursday, January 23, 1975, newspaper, January 23, 1975; (https://texashistory.unt.edu/ark:/67531/metapth194493/m1/20/: accessed May 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .