Rio Grande Herald (Rio Grande City, Tex.), Vol. 33, No. 60, Ed. 1 Thursday, December 4, 1975, newspaper, December 4, 1975; (https://texashistory.unt.edu/ark:/67531/metapth194536/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .