The El Reno Daily Democrat (El Reno, Okla.), Vol. 31, No. 52, Ed. 1 Wednesday, June 15, 1921, newspaper, June 15, 1921; (https://gateway.okhistory.org/ark:/67531/metadc91302/m1/1/: accessed May 20, 2025), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .