The Hereford Brand (Hereford, Tex.), Vol. 72, No. 25, Ed. 1 Thursday, June 21, 1973, newspaper, June 21, 1973; (https://texashistory.unt.edu/ark:/67531/metapth1429607/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .