The Ponca City Daily Courier. (Ponca City, Okla.), Vol. 9, No. 179, Ed. 1 Saturday, May 12, 1906, newspaper, May 12, 1906; (https://gateway.okhistory.org/ark:/67531/metadc175386/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .