The Hartshorne Sun. (Hartshorne, Okla.), Vol. 16, No. 18, Ed. 1 Thursday, July 7, 1910, newspaper, July 7, 1910; (https://gateway.okhistory.org/ark:/67531/metadc151727/m1/1/: accessed April 24, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .