The Copan Leader. (Copan, Okla.), Vol. 2, No. 16, Ed. 1 Friday, April 27, 1917, newspaper, April 27, 1917; (https://gateway.okhistory.org/ark:/67531/metadc950745/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .