Stafford, R. E. The Evening Free Press (Oklahoma City, Okla.), Vol. 1, No. 152, Ed. 1 Wednesday, May 10, 1911, newspaper, May 10, 1911; (https://gateway.okhistory.org/ark:/67531/metadc151798/m1/1/: accessed December 11, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .