Oklahoma City Times (Oklahoma City, Okla.), Vol. 30, No. 55, Ed. 1 Thursday, June 6, 1918, newspaper, June 6, 1918; (https://gateway.okhistory.org/ark:/67531/metadc170693/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .