McDonald, R. B. & Anderson, A. W. The Herald-Sentinel. (Cordell, Okla.), Vol. 25, No. 33, Ed. 1 Monday, May 20, 1918, newspaper, May 20, 1918; (https://gateway.okhistory.org/ark:/67531/metadc169647/m1/1/: accessed December 10, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .