The Guymon Herald. (Guymon, Okla.), Vol. 28, No. 6, Ed. 1 Thursday, April 11, 1918, newspaper, April 11, 1918; (https://gateway.okhistory.org/ark:/67531/metadc273569/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .