Oklahoma City Times (Oklahoma City, Okla.), Vol. 29, No. 70, Ed. 1 Thursday, June 21, 1917, newspaper, June 21, 1917; (https://gateway.okhistory.org/ark:/67531/metadc170367/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .