Oklahoma Volksblatt. (El Reno, Okla.), Vol. 18, No. 37, Ed. 1 Thursday, November 30, 1911, newspaper, November 30, 1911; (https://gateway.okhistory.org/ark:/67531/metadc943197/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .