The Morning Tulsa Daily World (Tulsa, Okla.), Vol. 15, No. 193, Ed. 1, Monday, April 11, 1921, newspaper, April 11, 1921; (https://gateway.okhistory.org/ark:/67531/metadc77692/m1/1/: accessed April 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .