Medina Valley and County News Bulletin (Castroville, Tex.), Vol. 8, No. 44, Ed. 1 Wednesday, February 21, 1968, newspaper, February 21, 1968; (https://texashistory.unt.edu/ark:/67531/metapth1599112/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .