The Mathis News (Mathis, Tex.), Vol. 55, No. 27, Ed. 1 Thursday, June 20, 1963, newspaper, June 20, 1963; (https://texashistory.unt.edu/ark:/67531/metapth1038635/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .