The Plainsman Press (Levelland, Tex.), Vol. 6, No. 13, Ed. 1 Wednesday, March 18, 1964, newspaper, March 18, 1964; (https://texashistory.unt.edu/ark:/67531/metapth1476273/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .