Crittenden, H. L. Mangum Sun-Monitor. (Mangum, Okla.), Vol. 18, No. 38, Ed. 1 Thursday, June 25, 1908, newspaper, June 25, 1908; (https://gateway.okhistory.org/ark:/67531/metadc285403/m1/1/: accessed December 11, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .