Farmers' Champion (Elgin, Okla.), Vol. 3, No. 28, Ed. 1, Thursday, May 1, 1913, newspaper, May 1, 1913; (https://gateway.okhistory.org/ark:/67531/metadc69504/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .