Drumright Evening Derrick (Drumright, Okla.), Vol. 4, No. 93, Ed. 1 Tuesday, May 7, 1918, newspaper, May 7, 1918; (https://gateway.okhistory.org/ark:/67531/metadc148464/m1/1/: accessed March 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .