Forster, William. The Post. (Brule, Okla. Terr.), Vol. 1, No. 50, Ed. 1 Friday, May 18, 1906, newspaper, May 18, 1906; (https://gateway.okhistory.org/ark:/67531/metadc941676/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .