Zeigler, C. C. Oklahoma Labor Unit (Oklahoma City, Okla.), Vol. 6, No. 25, Ed. 1 Saturday, December 6, 1913, newspaper, December 6, 1913; (https://gateway.okhistory.org/ark:/67531/metadc157177/m1/1/: accessed September 23, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .