The Black Dispatch (Oklahoma City, Okla.), Vol. 6, No. 28, Ed. 1 Friday, June 17, 1921, newspaper, June 17, 1921; (https://gateway.okhistory.org/ark:/67531/metadc152337/m1/1/: accessed May 21, 2025), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .