Oklahoma State Labor News (Oklahoma City, Okla.), Vol. 3, No. 37, Ed. 1 Friday, January 29, 1909, newspaper, January 29, 1909; (https://gateway.okhistory.org/ark:/67531/metadc154822/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .