The Evening Free Press (Oklahoma City, Okla.), Vol. 1, No. 155, Ed. 1 Saturday, May 13, 1911, newspaper, May 13, 1911; (https://gateway.okhistory.org/ark:/67531/metadc151801/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .