The H-SU Brand (Abilene, Tex.), Vol. 54, No. 33, Ed. 1, Friday, February 7, 1969, newspaper, February 7, 1969; (https://texashistory.unt.edu/ark:/67531/metapth97055/m1/1/: accessed April 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .