The Mangum Star. (Mangum, Okla. Terr.), Vol. 20, No. 20, Ed. 1 Thursday, November 14, 1907, newspaper, November 14, 1907; (https://gateway.okhistory.org/ark:/67531/metadc281103/m1/7/: accessed July 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .