The Rattler (San Antonio, Tex.), Vol. 55, No. 10, Ed. 1 Wednesday, February 17, 1971, newspaper, February 17, 1971; (https://texashistory.unt.edu/ark:/67531/metapth1547453/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .