The Ballinger Ledger (Ballinger, Tex.), Vol. 56, No. 34, Ed. 1 Thursday, April 29, 1937, newspaper, April 29, 1937; (https://texashistory.unt.edu/ark:/67531/metapth1161419/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .