Oklahoma City Times (Oklahoma City, Okla.), Vol. 47, No. 313, Ed. 1 Thursday, May 20, 1937, newspaper, May 20, 1937; (https://gateway.okhistory.org/ark:/67531/metadc1989514/m1/1/: accessed May 31, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .