Pearl Emile Siemers 1892–1979 Christian Warrren Warnecke 1883–1955 | | |
| | | | | | | Amelia Volberding 1850–1916 | | | | Dorothea Buchholz 1807–1887 |
| | | Heinrich Friedrich Volberding 1818–1882 Louisa Stünkel or Stuenkel 1824–1872 | | | | Johann Heinrich Volberding 1790–1851 Marie Dorothy Knust 1797– | | | | Johann Friedrich Volberding 1746–1792 |
| | | Johann Jurgen Henning Knust 1773–1821 Ilsa Catharine Schultze 1767–1816 | | |
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