Jan Pietersz Laan was born 24 January 1712 in Wervershoof, North Holland, Netherlands to Pieter Laan (1688-1732) and Geertje Joachims (-1754) and died 3 September 1793 Wervershoof, North Holland, Netherlands of unspecified causes. He married Grietje Bakker (1710-1753) 18 January 1734 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Antje Laan (1734-1803) | 15 October 1734 Andijk, North Holland, Netherlands | 16 March 1803 Andijk, North Holland, Netherlands | Meindert Paaij (1732-1817) |
| Pieter Laan (1736-1810) | |||
| Arien Laan (1742-1783) | 12 March 1742 Wervershoof, North Holland, Netherlands | 10 March 1783 Onderdijk, North Holland, Netherlands | Aafje Schouten (1743-1813) |
Siblings
| Name | Birth | Death | Joined with |
| Joannes Lane (1710-) | |||
| Jan Laan (1712-1793) | 24 January 1712 Wervershoof, North Holland, Netherlands | 3 September 1793 Wervershoof, North Holland, Netherlands | Grietje Bakker (1710-1753) |
| Pieter Laan (1713-c1779) | September 1713 Wervershoof, North Holland, Netherlands | 1779 Wervershoof, North Holland, Netherlands | Sijtje Swart (1712-1783) |
| Nn Lane (c1715-) | |||
| Maria Lane (1716-) | |||
| Arianus Lane (1720-) | |||
| Anna Lane (1721-) | |||
| Adrianus Lane (1723-) | |||
| Adrianus Lane (1726-) | |||
Residences
Footnotes (including sources)
| ‡ General |