The New Era. (Davenport, Okla.), Vol. 3, No. 15, Ed. 1 Thursday, May 4, 1911, newspaper, May 4, 1911; (https://gateway.okhistory.org/ark:/67531/metadc109792/m1/1/: accessed October 16, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .