Mangum Sun-Monitor. (Mangum, Okla.), Vol. 20, No. 20, Ed. 1 Thursday, February 3, 1910, newspaper, February 3, 1910; (https://gateway.okhistory.org/ark:/67531/metadc285006/m1/1/: accessed June 27, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .