Drumright Evening Derrick (Drumright, Okla.), Vol. 5, No. 47, Ed. 1 Friday, May 21, 1920, newspaper, May 21, 1920; (https://gateway.okhistory.org/ark:/67531/metadc149081/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .