The Sulphur Democrat. (Sulphur, Okla.), Vol. 24, No. 39, Ed. 1 Thursday, April 11, 1918, newspaper, April 11, 1918; (https://gateway.okhistory.org/ark:/67531/metadc2083811/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .