Watt, W. O. The Greer County Democrat (Mangum, Okla.), Vol. 25, No. 21, Ed. 1 Thursday, February 4, 1915, newspaper, February 4, 1915; (https://gateway.okhistory.org/ark:/67531/metadc280717/m1/1/: accessed November 29, 2021), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .