The Lawton Constitution (Lawton, Okla.), Vol. 15, No. 235, Ed. 1 Wednesday, May 10, 1916, newspaper, May 10, 1916; (https://gateway.okhistory.org/ark:/67531/metadc129135/m1/1/: accessed December 13, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .