| Spouse | Marytje WALDRON (1686 - ) |
| Child | Jan WILLEMSZEN (1708 - ) |
| Child | Daniel WILLEMSZEN (1709 - 1719) |
| Child | Wilhelmus WILLEMSZEN (1711 - ) |
| Child | Fredrik WILLEMSZEN (1712 - 1719) |
| Child | Sara WILLEMSZEN (1713 - ) |
| Child | Elizabeth WILLEMSZEN (1715 - 1716) |
| Child | Elizabeth WILLEMSZEN (1716 - ) |
| Child | Marytje WILLEMSZEN (1718 - ) |
| Child | Daniel WILLEMSZEN (1719 - 1722) |
| Child | Fredrik WILLEMSZEN (1719 - 1721) |
| Child | Frederick WILLEMSZEN (1721 - 1731) |
| Child | Daniel WILLEMSZEN (1722 - ) |
| Child | Joseph WILLEMSZEN (1724 - ) |
| Child | Isaac WILLEMSZEN (1726 - 1727) |
| Child | Annatje WILLEMSZEN (1729 - ) |