The Mangum Star (Mangum, Okla.), Vol. 32, No. 15, Ed. 1 Thursday, September 25, 1919, newspaper, September 25, 1919; (https://gateway.okhistory.org/ark:/67531/metadc284423/m1/2/: accessed April 23, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .