Vincent, Zilpah M. Britton Weekly Sentinel. (Britton, Okla.), Vol. 1, No. 20, Ed. 1 Friday, July 24, 1908, newspaper, July 24, 1908; (https://gateway.okhistory.org/ark:/67531/metadc142354/m1/1/: accessed September 22, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .