| Father | Casparus Christoffel Steynmets (1686 - 1761) |
| Mother | Rachel Pieter Peters (1690 - ) |
| Sibling | Abraham Casparus Steynmets (1724 - ) |
| Sibling | Christoffel Steynmets (1714 - 1793) |
| Sibling | Johannes Steynmets (1718 - ) |
| Sibling | Jacob Stimets (1720 - ) |
| Sibling | Jannetje Styments (1722 - 1794) |
| Sibling | Benjamin Steimeist (1727 - 1806) |
| Sibling | Rachel Steynmets (1729 - ) |
| Sibling | Casparus Steynmets (1733 - 1737) |
| Sibling | Catharine Steynmets (1735 - ) |
| Sibling | Casparus Steynmets (1737 - ) |
| Sibling | Peter Casparus Steynmets (1718 - 1766) |