Drumright Evening Derrick (Drumright, Okla.), Vol. 4, No. 73, Ed. 1 Saturday, April 13, 1918, newspaper, April 13, 1918; (https://gateway.okhistory.org/ark:/67531/metadc148444/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .