| Father | Gerrit Adrian Post (1680 - 1797) |
| Mother | Francyntie Pouluse (1684 - 1734) |
| Sibling | Adrian Post (1725 - 1750) |
| Sibling | Lena Post (1730 - ) |
| Sibling | Antye Post (1728 - ) |
| Sibling | Colartige Marissa Post (1727 - ) |
| Sibling | Jannetye Post (1732 - ) |
| Sibling | Helena Post (1732 - ) |
| Sibling | Claertye Post (1727 - 1760) |
| Sibling | Peter Post (1716 - ) |
| Sibling | Maritie Post (1734 - ) |
| Sibling | Jannetje Post (1729 - ) |
| Sibling | Catharine Post (1722 - ) |
| Sibling | Rachel Post (1731 - ) |
| Sibling | Johannes Gerrit Post (1731 - ) |
| Sibling | Geesie Post (1718 - ) |
| Sibling | Gerrit Post (1721 - 1797) |