The Sentinel Leader (Sentinel, Okla.), Vol. 17, No. 23, Ed. 1 Thursday, September 16, 1920, newspaper, September 16, 1920; (https://gateway.okhistory.org/ark:/67531/metadc1792464/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .