The Sunday Tulsa Daily World (Tulsa, Okla.), Vol. 15, No. 338, Ed. 1, Sunday, September 4, 1921, newspaper, September 4, 1921; (https://gateway.okhistory.org/ark:/67531/metadc77755/m1/2/: accessed April 20, 2021), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .