The Chickasha Daily Express (Chickasha, Okla.), Vol. 88, No. 143, Ed. 1 Thursday, September 11, 1980, newspaper, September 11, 1980; (https://gateway.okhistory.org/ark:/67531/metadc1869242/m1/2/: accessed July 17, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .