Rio Grande Herald (Rio Grande City, Tex.), Vol. 31, No. 47, Ed. 1 Thursday, December 27, 1973, newspaper, December 27, 1973; (https://texashistory.unt.edu/ark:/67531/metapth194439/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .