News Bulletin (Castroville, Tex.), Vol. 5, No. 1, Ed. 1 Wednesday, April 29, 1964, newspaper, April 29, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1593602/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .