Oklahoma State Register. (Guthrie, Okla.), Vol. 15, No. 20, Ed. 1 Thursday, May 31, 1906, newspaper, May 31, 1906; (https://gateway.okhistory.org/ark:/67531/metadc111345/m1/1/: accessed May 24, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .