Western Oil Derrick (Oklahoma City, Okla.), Vol. 2, No. 13, Ed. 2 Saturday, November 29, 1919, newspaper, November 29, 1919; (https://gateway.okhistory.org/ark:/67531/metadc152170/m1/2/: accessed April 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .