Tryon, W. M. The Davenport New Era (Davenport, Okla.), Vol. 7, No. 15, Ed. 1 Thursday, May 20, 1915, newspaper, May 20, 1915; (https://gateway.okhistory.org/ark:/67531/metadc109995/m1/1/: accessed December 17, 2017), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .