Rio Grande Herald (Rio Grande City, Tex.), Vol. 35, No. 72, Ed. 1 Thursday, March 1, 1979, newspaper, March 1, 1979; (https://texashistory.unt.edu/ark:/67531/metapth194704/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .