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Soule, J. S. Farmers' Champion (Elgin, Okla.), Vol. 3, No. 30, Ed. 1, Thursday, May 15, 1913, newspaper, May 15, 1913; (https://gateway.okhistory.org/ark:/67531/metadc69506/m1/1/: accessed October 29, 2020), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .