San Antonio Register (San Antonio, Tex.), Vol. 34, No. 16, Ed. 1 Friday, June 19, 1964, newspaper, June 19, 1964; (https://texashistory.unt.edu/ark:/67531/metapth403867/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .