The Hammon Advocate (Hammon, Okla.), Vol. 6, No. 43, Ed. 1 Thursday, April 12, 1917, newspaper, April 12, 1917; (https://gateway.okhistory.org/ark:/67531/metadc1777432/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .