Jan Cornelisz de Haan was born circa 21 July 1738 to Cornelis de Haan (1702-1781) and Maartje Pluim (-1761) and died 3 May 1789 of unspecified causes. He married Trijntje Backer (-1781) 25 January 1773 in Westwoud.
Children
| Name | Birth | Death | Joined with |
| Maarten de Haan (-1778) | |||
| Pieter de Haan (-1788) | |||
| Cornelis de Haan (1773-bef1859) | 17 December 1773 Hem | 28 August 1841 Hoorn | Trijntje Veldhoen (1774-1842) |
Footnotes (including sources)
| ‡ General |