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 _John DUFFIE ________|
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|--Cornelius Roosevlet DUFFIE 
|  (1789 - 1827)
|                                             _Johannes ROOSEVELT _+
|                                            | (1688 - 1750) m 1708
|                      _Cornelius ROOSEVELT _|
|                     | (1731 - ....)        |
|                     |                      |_Heyltje SJOERTS ____
|                     |                        (1688 - 1752) m 1708
|_Maria ROOSEVELT ____|
  (1760 - 1821)       |
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