The Duncan Banner (Duncan, Okla.), Vol. 26, No. 38, Ed. 1 Friday, May 17, 1918, newspaper, May 17, 1918; (https://gateway.okhistory.org/ark:/67531/metadc1742388/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .