Cimarron Valley Clipper (Coyle, Okla.), Vol. 21, No. 50, Ed. 1 Thursday, July 13, 1922, newspaper, July 13, 1922; (https://gateway.okhistory.org/ark:/67531/metadc911248/m1/1/: accessed July 21, 2019), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .