Wandell, Clarence F. Cimarron Valley Clipper (Coyle, Okla.), Vol. 18, No. 13, Ed. 1 Thursday, August 1, 1918, newspaper, August 1, 1918; (https://gateway.okhistory.org/ark:/67531/metadc911503/m1/1/: accessed November 19, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .