Cimarron Valley Clipper (Coyle, Okla.), Vol. 12, No. 3, Ed. 1 Thursday, June 6, 1912, newspaper, June 6, 1912; (https://gateway.okhistory.org/ark:/67531/metadc913741/m1/1/: accessed August 15, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .