The Labor Signal (Oklahoma City, Okla. Terr.), Vol. 5, No. 29, Ed. 1 Thursday, May 24, 1906, newspaper, May 24, 1906; (https://gateway.okhistory.org/ark:/67531/metadc121781/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .