The Chickasha Daily Express (Chickasha, Okla.), Vol. 77, No. 118, Ed. 1 Monday, July 7, 1969, newspaper, July 7, 1969; (https://gateway.okhistory.org/ark:/67531/metadc1865563/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .