The Mathis News (Mathis, Tex.), Vol. 57, No. 23, Ed. 1 Thursday, June 5, 1980, newspaper, June 5, 1980; (https://texashistory.unt.edu/ark:/67531/metapth1040567/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .