The Duncan Banner (Duncan, Okla.), Vol. 26, No. 4, Ed. 1 Friday, September 21, 1917, newspaper, September 21, 1917; (https://gateway.okhistory.org/ark:/67531/metadc1742321/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .