Niblack, Leslie G. The Guthrie Daily Leader. (Guthrie, Okla.), Vol. 54, No. 64, Ed. 1 Saturday, May 15, 1920, newspaper, May 15, 1920; (https://gateway.okhistory.org/ark:/67531/metadc713325/m1/1/: accessed May 25, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .