The Mangum Star And Southwest Eagle (Mangum, Okla.), Vol. 31, No. 23, Ed. 1 Thursday, November 21, 1918, newspaper, November 21, 1918; (https://gateway.okhistory.org/ark:/67531/metadc276395/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .