Crittenden, L. G. Mangum Sun-Monitor. (Mangum, Okla.), Vol. 19, No. 35, Ed. 1 Thursday, May 27, 1909, newspaper, May 27, 1909; (https://gateway.okhistory.org/ark:/67531/metadc284941/m1/1/: accessed November 18, 2017), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .