The Chickasha Star (Chickasha, Okla.), Vol. 73, No. 7, Ed. 1 Thursday, May 1, 1975, newspaper, May 1, 1975; (https://gateway.okhistory.org/ark:/67531/metadc1898882/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .