The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 105, No. 23, Ed. 1 Friday, June 6, 1980, newspaper, June 6, 1980; (https://texashistory.unt.edu/ark:/67531/metapth780656/m1/2/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .