The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 105, No. 10, Ed. 1 Friday, March 7, 1980, newspaper, March 7, 1980; (https://texashistory.unt.edu/ark:/67531/metapth779955/m1/3/: accessed June 19, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .