The Pony Express (Carthage, Tex.), Vol. 11, No. 28, Ed. 1 Tuesday, April 28, 1959, newspaper, April 28, 1959; (https://texashistory.unt.edu/ark:/67531/metapth507873/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .