Sprague, G. E. The Hennessey Clipper (Hennessey, Okla.), Vol. 20, No. 10, Ed. 1 Thursday, July 22, 1909, newspaper, July 22, 1909; (https://gateway.okhistory.org/ark:/67531/metadc105667/m1/1/: accessed March 21, 2019), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .