RINGMA
                                                                                                                                                                +-V.1--------Saskia
                                                                                                                                                                |
                                                                                                                                                                |
                                                                                             RINGMA                                  RINGMA                     |            RINGMA
                                                                                +-III.1------Albert Douwe               +-IV.1-------Albert Karel               +-V.2--------Maike
                                                                                |            30-01-1924                 |                                       |
                                                                                |            x--------------------------+            x--------------------------+
                                                                                |            WENSVOORT                               KONING                     |            RINGMA
                                                                                | III.2      Jean                         IV.2       Jeannette                  +-V.3--------Yvonne
                                                                                |
                                                                                |
                                                                                |
                                                                                |
                                                                                |
                                                                                |
                                                                                |                                                                                            de GRAAF
                                                                                |                                                                               +-V.4--------Julie
                                                                                |                                                                               |            ± 1982
                                                                                |                                                                               |
                                                                                |                                                    de GRAAF                   |            de GRAAF
                                                                                |                                         IV.3       Hans                       +-V.5--------Roelof
                                                                                |                                                    ± 1955                     |            ± 1984
                                                                                |                                                    x--------------------------+
                                                                                |            RINGMA                                  RINGMA                     |            de GRAAF
                                                                                +-III.3------Douwe Hendrik              +-IV.4-------Bonnie                     +-V.6--------Maarten
                                                                                |            11-04-1925                 |            ± 1955                     |            ± 1990
                                                                                |            x--------------------------+                                       |
                                                                                |            KUIJKEN                    |            RINGMA                     |            de GRAAF
                                                                                | III.4      Jopie                      +-IV.5-------Rik                        +-V.7--------Michiel
                                                                                |                                                                                            ± 1990
                                                                                |                                                    x 17-02-1995
             JANSSEN                                 RINGMA                     |                                                    BOOGAART
  I.1        ?                            II.1       Keimpe                     |                                         IV.6       Dingena
                                                     21-12-1893 tot 05-05-1990  |
             x--------------------------+            x 03-05-1923---------------+
             van HETEREN                |            JANSSEN                    |
  I.2        ?                          +-II.2-------Petronella Hendrika Wilhe  |
                                                     21-11-1900 tot 16-07-1996  |
                                                                                |
                                                                                |            RINGMA                                  PEGEL                                   PEGEL
                                                                                +-III.5------Karel Herman                 IV.7       Carel Johannes             +-V.8--------Kimberley Birgitte
                                                                                |            23-03-1927                              17-02-1957                 |            12-07-1996
                                                                                |            x 29-03-1956---------------+            x 15-02-1990---------------+
                                                                                |            GORTER                     |            RINGMA                     |            PEGEL
                                                                                | III.6      Helena Sibbeltje           +-IV.8-------Carolina Helena            +-V.9--------Robin Carel
                                                                                |            15-12-1925                              24-04-1959                              10-11-1999
                                                                                |
                                                                                |
                                                                                |
                                                                                |
                                                                                |
                                                                                |            RINGMA                                  RINGMA
                                                                                +-III.7------Peter----------------------+-IV.9-------Karel
                                                                                |            30-11-1932                 |
                                                                                |                                       |
                                                                                |            RINGMA                     |            RINGMA
                                                                                +-III.8------Hermina                    +-IV.10------Frans
                                                                                |            28-02-1938
                                                                                |
                                                                                |            RINGMA
                                                                                +-III.9------Steven
                                                                                |            10-03-1940
                                                                                |
                                                                                |            RINGMA
                                                                                +-III.10-----Margaretha
                                                                                             22-01-1944

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