Jan Pietersz Moerbuijck was born on an unknown date to Pieter Moerbuijck and died 25 June 1705 Beemster of unspecified causes. He married Neel Cornelis (-1677) 15 November 1642 in Beemster. He married Brechtje Jans (-1705) 30 May 1677 in Beemster.
Children
| Name | Birth | Death | Joined with |
| Guert Moerbuijck (1659-) | |||
| Brecht Moerbuijck (1662) | |||
| Cornelis Moerbuijck (1664-) | |||
| Name | Birth | Death | Joined with |
| Grietje Moerbuijck (1678-1763) | |||
| Jan Moerbuijck (1680-bef1686) | |||
| Jan Moerbuijck (1686-1686) | |||
| Jan Moerbuijck (1687-1775) | 20 November 1687 Beemster | 24 March 1775 | Haasje Claas (1685-1729) Trijntje Stam (c1708-1784) |
Footnotes (including sources)
| ‡ General |