Mayfield, J. W. The Supply Republican (Supply, Okla.), Vol. 20, No. 15, Ed. 1 Thursday, May 12, 1921, newspaper, May 12, 1921; (https://gateway.okhistory.org/ark:/67531/metadc848100/m1/1/: accessed September 21, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .