Burkhart, Richard W. The Tulsa Chief. (Tulsa, Okla.), Vol. 20, No. 4, Ed. 1 Friday, April 15, 1910, newspaper, April 15, 1910; (https://gateway.okhistory.org/ark:/67531/metadc1172279/m1/1/: accessed May 24, 2019), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .