Tulsa Daily World (Tulsa, Okla.), Vol. 13, No. 218, Ed. 1 Tuesday, April 23, 1918, newspaper, April 23, 1918; (https://gateway.okhistory.org/ark:/67531/metadc135691/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .