Cimarron Valley Clipper (Coyle, Okla.), Vol. 14, No. 23, Ed. 1 Thursday, October 21, 1915, newspaper, October 21, 1915; (https://gateway.okhistory.org/ark:/67531/metadc911072/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .