Sapulpa Herald (Sapulpa, Okla.), Vol. 4, No. 191, Ed. 1 Tuesday, April 16, 1918, newspaper, April 16, 1918; (https://gateway.okhistory.org/ark:/67531/metadc1521526/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .