Oklahoma City Times (Oklahoma City, Okla.), Vol. 79, No. 93, Ed. 3 Thursday, June 6, 1968, newspaper, June 6, 1968; (https://gateway.okhistory.org/ark:/67531/metadc1984876/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .