The Comanche Chief (Comanche, Tex.), Vol. 96, No. 33, Ed. 1 Friday, January 31, 1969, newspaper, January 31, 1969; (https://texashistory.unt.edu/ark:/67531/metapth903961/m1/2/: accessed October 20, 2021), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .