Crittenden, H. L. Mangum Sun-Monitor. (Mangum, Okla.), Vol. 16, No. 18, Ed. 1 Thursday, April 26, 1906, newspaper, April 26, 1906; (https://gateway.okhistory.org/ark:/67531/metadc285592/m1/1/: accessed November 13, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .