Nixon, R. W. The Spencer Siftings (Spencer, Okla.), Vol. 1, No. 17, Ed. 1 Friday, July 17, 1908, newspaper, July 17, 1908; (https://gateway.okhistory.org/ark:/67531/metadc937304/m1/1/: accessed June 24, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .