The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 81, No. 22, Ed. 1 Friday, June 1, 1956, newspaper, June 1, 1956; (https://texashistory.unt.edu/ark:/67531/metapth826728/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .