Rio Grande Herald (Rio Grande City, Tex.), Vol. 32, No. 8, Ed. 1 Thursday, February 21, 1974, newspaper, February 21, 1974; (https://texashistory.unt.edu/ark:/67531/metapth194448/m1/18/: accessed April 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .