????
                               Janssen, Johann Seims (b:1846)(d:1931)
                              |          ????
                     Janssen, John Gerhard (b:1885)(d:1971)
                    |         |                    ????
                    |         |          Ricklefs, Ricklef Mathies (b:1814)(d:1882)
                    |         |         |          ????
                    |          Ricklefs, Elise Friederike (b:1851)(d:1923)
                    |                   |          ????
                    |                    Johnson, Elizabeth (Lizzie) (b:1812)(d:)
                    |                              ????
           Janssen, Dale E (b:1933)(d:2020)
          |         |          ????
          |          Janssen, Elizabeth W (b:1893)(d:1962)
          |                    ????
 Janssen, Rodney (b:1958)(d:)
          |          ????
           Bruns, Mary Jane (b:1935)(d:)
                     ????