Drumright Evening Derrick (Drumright, Okla.), Vol. 4, No. 169, Ed. 1 Monday, August 5, 1918, newspaper, August 5, 1918; (https://gateway.okhistory.org/ark:/67531/metadc148537/m1/1/: accessed November 20, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .