Wettengel & Sons. Farmers' Champion (Elgin, Okla.), Vol. 6, No. 52, Ed. 1, Wednesday, September 13, 1916, newspaper, September 13, 1916; (https://gateway.okhistory.org/ark:/67531/metadc69677/m1/2/: accessed February 18, 2020), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .