Zacheus van Foreest was born 23 November 1757 in Alkmaar, North Holland, Netherlands to Dirk van Foreest (1729-1782) and Maria Wilhelmina Stoesak (1733-1782) and died 21 October 1745 Alkmaar, North Holland, Netherlands of unspecified causes. He married Rijka Maria van Cats (1762-1846) 1793 .
Children
| Name | Birth | Death | Joined with |
| Willem Dirk van Foreest (1796-1841) | |||
| Maria Cornelia van Foreest (1794-1836) | |||