Western Oil Derrick (Oklahoma City, Okla.), Vol. 3, No. 13, Ed. 1 Saturday, March 27, 1920, newspaper, March 27, 1920; (https://gateway.okhistory.org/ark:/67531/metadc152219/m1/1/: accessed April 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .