| Father | Willem Pietersz. Moerman van Blankenburg (1573 - 1648) |
| Mother | Neeltje Jansdr. Block (1577 - ) |
| Sibling | Andries Willemsz. Moerman (1621 - 1673) |
| Sibling | Jan Willemsz. Moerman (1623 - 1687) |
| Sibling | Maartje Willemsdr. Moerman (1628 - ) |
| Sibling | Jannetje Willemsdr. Moerman (1629 - 1692) |
| Sibling | Wilm Willemsz. Moerman (1636 - 1643) |
| Sibling | Jacob Willemsz Moerman (1638 - ) |
| Sibling | Jacob-Willemsz Moerman ( - ) |
| Sibling | Wilm-Willemsz Moerman ( - ) |
| Sibling | Jannetje-Willemsz Moerman (1628 - ) |
| Sibling | Barbar Wdr Moerman ( - 1669) |
| Sibling | Vincken Wdr Moerman ( - 1657) |