The Copan Leader (Copan, Okla.), Vol. 3, No. 7, Ed. 1 Friday, February 15, 1918, newspaper, February 15, 1918; (https://gateway.okhistory.org/ark:/67531/metadc950532/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .