Forster, William. The Post. (Brule, Okla. Terr.), Vol. 1, No. 44, Ed. 1 Friday, April 13, 1906, newspaper, April 13, 1906; (https://gateway.okhistory.org/ark:/67531/metadc941517/m1/1/: accessed November 16, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .