Allen, Jasper M. The Hartshorne Sun. (Hartshorne, Okla.), Vol. 17, No. 10, Ed. 1 Thursday, May 11, 1911, newspaper, May 11, 1911; (https://gateway.okhistory.org/ark:/67531/metadc149899/m1/1/: accessed August 19, 2019), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .