Calkins, R. T. The Mulhall State Journal (Mulhall, Okla.), Vol. 22, No. 9, Ed. 1 Thursday, December 8, 1921, newspaper, December 8, 1921; (https://gateway.okhistory.org/ark:/67531/metadc161893/m1/1/: accessed November 17, 2017), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .