Oklahoma City Times (Oklahoma City, Okla.), Vol. 79, No. 107, Ed. 1 Saturday, June 22, 1968, newspaper, June 22, 1968; (https://gateway.okhistory.org/ark:/67531/metadc993185/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .