Coltrin, George W. The Mathis News (Mathis, Tex.), Vol. 26, No. 18, Ed. 1 Friday, May 2, 1941, newspaper, May 2, 1941; (https://texashistory.unt.edu/ark:/67531/metapth1038455/m1/1/: accessed December 16, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .