The Ada Evening News (Ada, Okla.), Vol. 54, No. 71, Ed. 1 Tuesday, June 4, 1957, newspaper, June 4, 1957; (https://gateway.okhistory.org/ark:/67531/metadc2112019/m1/1/: accessed July 3, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .