The Sentinel Leader. (Sentinel, Okla.), Vol. 7, No. 52, Ed. 1 Friday, July 28, 1911, newspaper, July 28, 1911; (https://gateway.okhistory.org/ark:/67531/metadc272419/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .