Mangum Sun-Monitor. (Mangum, Okla.), Vol. 13, No. 35, Ed. 1 Thursday, August 27, 1903, newspaper, August 27, 1903; (https://gateway.okhistory.org/ark:/67531/metadc285825/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .