The Copan Leader. (Copan, Okla.), Vol. 2, No. 26, Ed. 1 Friday, July 6, 1917, newspaper, July 6, 1917; (https://gateway.okhistory.org/ark:/67531/metadc950631/m1/1/: accessed November 15, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .