The Ringwood Leader. (Ringwood, Okla.), Vol. 18, No. 26, Ed. 1 Thursday, April 18, 1918, newspaper, April 18, 1918; (https://gateway.okhistory.org/ark:/67531/metadc1722903/m1/3/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .