Drumright Evening Derrick (Drumright, Okla.), Vol. 3, No. 108, Ed. 1 Friday, May 18, 1917, newspaper, May 18, 1917; (https://gateway.okhistory.org/ark:/67531/metadc148186/m1/1/: accessed November 20, 2017), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .