Oklahoma Agriculturist (El Reno, Okla.), Vol. 1, No. 3, Ed. 1 Thursday, April 12, 1906, newspaper, April 12, 1906; (https://gateway.okhistory.org/ark:/67531/metadc913426/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .