Oklahoma Vorwärts. (Bessie, Okla.), Vol. 16, No. 51, Ed. 1 Friday, May 19, 1916, newspaper, May 19, 1916; (https://gateway.okhistory.org/ark:/67531/metadc943207/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .