Wileman, Herbert. Mangum Sun-Monitor. (Mangum, Okla.), Vol. 21, No. 30, Ed. 1 Thursday, April 13, 1911, newspaper, April 13, 1911; (https://gateway.okhistory.org/ark:/67531/metadc284926/m1/1/: accessed June 12, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .