Oklahoma Leader (Oklahoma City, Okla.), Vol. 1, No. 15, Ed. 1 Wednesday, September 1, 1920, newspaper, September 1, 1920; (https://gateway.okhistory.org/ark:/67531/metadc149165/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .