Panneberg was a partner with her son-in-law, Hermann Koppelmann (born 1862)
Active in Chicago, Illinois, 1878-1895
Also known as H. Koppelmann & Mrs. Panneberg and Includes a portrait of Robert Vogt (born 1891) in 1894
Active in Grand Rapids, Michigan, circa 1863-1864
Also known as Mrs. Elmira Wykes, Mrs. E. S. Wykes, or Mrs. Edward S. Wykes and Includes a portrait of Price H. Bescott, June 1864