Oklahoma State Labor News (Oklahoma City, Okla.), Vol. 3, No. 19, Ed. 1 Friday, September 25, 1908, newspaper, September 25, 1908; (https://gateway.okhistory.org/ark:/67531/metadc154812/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .