Seminole News (Seminole, Tex.), Vol. 3, No. 23, Ed. 1 Wednesday, September 10, 1969, newspaper, September 10, 1969; (https://texashistory.unt.edu/ark:/67531/metapth577759/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .