The Greer County Democrat (Mangum, Okla.), Vol. 26, No. 16, Ed. 1 Thursday, December 30, 1915, newspaper, December 30, 1915; (https://gateway.okhistory.org/ark:/67531/metadc282101/m1/1/: accessed September 12, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .