Cimarron Valley Clipper (Coyle, Okla.), Vol. 14, No. 47, Ed. 1 Thursday, April 6, 1916, newspaper, April 6, 1916; (https://gateway.okhistory.org/ark:/67531/metadc910868/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .