┌─────────Klaas Duizendstra

                               ┌─────────Pier Duizendstra 28.11.1868-13.6.1949

                               |         └─────────Maria Syvelstra

                     ┌─────────Jan Duizendstra 28.12.1897-10.4.1991

                     |         |         ┌─────────

                     |         └─────────Sientje van Tongeren

                     |                   └─────────

           ┌─────────Peter Friedrich Duizendstra 3.9.1926-4.8.2015

           |         |                   ┌─────────

           |         |         ┌─────────Friedrich Gonschorek

           |         |         |         └─────────

           |         └─────────Johanna Gonschorek 20.2.1895-6.1.1962

           |                   |         ┌─────────

           |                   └─────────Christina D’rygalla

           |                             └─────────

 ┌─────────Rolf Paul Duizendstra 27.12.1951

 |         |                             ┌─────────Wilhelm Bickmann

 |         |                   ┌─────────Joseph Franz Wilhelm Bickmann 21.2.1846-1899?

 |         |                   |         └─────────Franziska Heger

 |         |         ┌─────────Paul Eduard Bickmann 27.7.1877-7.12.1957

 |         |         |         |         ┌─────────Hermann Müller

 |         |         |         └─────────Bernhardina Maria Müller 31.3.1845-1899?

 |         |         |                   └─────────Bernhardina Schürbusch

 |         └─────────Anna Maria Bickmann 20.12.1929

 |                   |                   ┌─────────

 |                   |         ┌─────────

 |                   |         |         └─────────

 |                   └─────────Margit Julianna (Margarete) Mezei 14.1.1908-22.7.1958

 |                             |         ┌─────────

 |                             └─────────

 |                                       └─────────

 Marco Duizendstra x.x.xxxx

 |                             ┌─────────August Rost

 |                   ┌─────────Emil August Rost 9.11.1901

 |                   |         └─────────

 |         ┌─────────Helmut Mock 22.6.1924-23.12.1994

 |         |         |         ┌─────────August Köthe

 |         |         └─────────Frieda Köthe ?.?.1904-?.?.1926

 |         |                   └─────────Lina Ortell

 └─────────Dagmar Mock 6.9.1952

           |                   ┌─────────

           |         ┌─────────Julius Friedrich Wilhelm Lück 4.3.1886-28.12.1952

           |         |         └─────────

           └─────────Edith Erna Berta Lück 24.5.1931-24.7.2014

                     |         ┌─────────Karl Manthei 12.8.1837-13.4.1930

                     └─────────Berta Emilie Auguste Manthei 4.2.1889-10.9.1960

                               └─────────Pauline Fritz 25.1.1903-17.7.1903