Oklahoma Volksblatt. (Oklahoma City, Okla.), Vol. 14, No. 13, Ed. 1 Friday, June 14, 1907, newspaper, June 14, 1907; (https://gateway.okhistory.org/ark:/67531/metadc943090/m1/1/: accessed April 19, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .