The Ballinger Ledger (Ballinger, Tex.), Vol. 81, No. 38, Ed. 1 Monday, December 18, 1967, newspaper, December 18, 1967; (https://texashistory.unt.edu/ark:/67531/metapth1184343/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .