The Mathis News (Mathis, Tex.), Vol. 57, No. 15, Ed. 1 Thursday, April 10, 1980, newspaper, April 10, 1980; (https://texashistory.unt.edu/ark:/67531/metapth1041042/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .