The Hereford Brand (Hereford, Tex.), Vol. 70, No. 37, Ed. 1 Thursday, September 16, 1971, newspaper, September 16, 1971; (https://texashistory.unt.edu/ark:/67531/metapth1429515/m1/1/: accessed June 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .