The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 88, No. 37, Ed. 1 Friday, September 13, 1963, newspaper, September 13, 1963; (https://texashistory.unt.edu/ark:/67531/metapth827038/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .