The Morning Tulsa Daily World (Tulsa, Okla.), Vol. 15, No. 223, Ed. 1, Thursday, May 12, 1921, newspaper, May 12, 1921; (https://gateway.okhistory.org/ark:/67531/metadc77723/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .