Cimarron Valley Clipper (Coyle, Okla.), Vol. 11, No. 7, Ed. 1 Thursday, July 6, 1911, newspaper, July 6, 1911; (https://gateway.okhistory.org/ark:/67531/metadc910971/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .