Medina Valley and County News Bulletin (Castroville, Tex.), Vol. 12, No. 20, Ed. 1 Wednesday, September 1, 1971, newspaper, September 1, 1971; (https://texashistory.unt.edu/ark:/67531/metapth1599295/m1/6/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .