The Mangum Star. (Mangum, Okla.), Vol. 20, No. 37, Ed. 1 Thursday, March 12, 1908, newspaper, March 12, 1908; (https://gateway.okhistory.org/ark:/67531/metadc281108/m1/1/: accessed June 10, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .