Simpson, E. W. The Dover News. (Dover, Okla.), Vol. 8, No. 4, Ed. 1 Thursday, March 12, 1908, newspaper, March 12, 1908; (https://gateway.okhistory.org/ark:/67531/metadc106646/m1/1/: accessed December 14, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .