The Oklahoma News (Oklahoma City, Okla.), Vol. 31, No. 212, Ed. 1 Friday, May 7, 1937, newspaper, May 7, 1937; (https://gateway.okhistory.org/ark:/67531/metadc2010266/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .