Drumright Evening Derrick (Drumright, Okla.), Vol. 3, No. 119, Ed. 1 Thursday, May 31, 1917, newspaper, May 31, 1917; (https://gateway.okhistory.org/ark:/67531/metadc148196/m1/1/: accessed December 12, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .