The Plainsman Press (Levelland, Tex.), Vol. 12, No. 9, Ed. 1 Wednesday, February 11, 1970, newspaper, February 11, 1970; (https://texashistory.unt.edu/ark:/67531/metapth1476359/m1/1/: accessed June 3, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .