Cimarron Valley Clipper (Coyle, Okla.), Vol. 15, No. 20, Ed. 1 Thursday, September 28, 1916, newspaper, September 28, 1916; (https://gateway.okhistory.org/ark:/67531/metadc910383/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .