The Mangum Star (Mangum, Okla.), Vol. 30, No. 27, Ed. 1 Thursday, December 20, 1917, newspaper, December 20, 1917; (https://gateway.okhistory.org/ark:/67531/metadc280895/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .