Oklahoma Federationist (Oklahoma City, Okla.), Vol. 9, No. 3, Ed. 1 Saturday, July 8, 1916, newspaper, July 8, 1916; (https://gateway.okhistory.org/ark:/67531/metadc2091635/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .