Medina Valley and County News Bulletin (Castroville, Tex.), Vol. 15, No. 14, Ed. 1 Wednesday, July 18, 1973, newspaper, July 18, 1973; (https://texashistory.unt.edu/ark:/67531/metapth1599393/m1/3/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .