Western Oil Derrick (Oklahoma City, Okla.), Vol. 2, No. 15, Ed. 1 Saturday, December 13, 1919, newspaper, December 13, 1919; (https://gateway.okhistory.org/ark:/67531/metadc152176/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .