Sijtje Ewouts Swart was born circa 20 September 1712 in Wognum, North Holland, Netherlands to Ewout Swart (1677-) and Aldegonda Peetoom (1673-) and died 3 November 1783 Wervershoof, North Holland, Netherlands of unspecified causes. She married Pieter Laan (1713-c1779) 16 January 1736 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Pieter Laan (1736-1811) | 26 October 1736 Wervershoof, North Holland, Netherlands | 30 August 1784 Wervershoof, North Holland, Netherlands | Marie Jans (1727-1781) |
| Aleida Laan (1741-1809) | |||
| Ewoud Laan (1744-1809) | 18 March 1744 Andijk, North Holland, Netherlands | 29 January 1809 Wervershoof, North Holland, Netherlands | Aafje Bakker (-bef1785) Aagje Rood (1765-1838) |
| Jacob Laan (1746-1814) | 16 March 1746 Wervershoof, North Holland, Netherlands | 25 October 1814 Hoogkarspel, North Holland, Netherlands | Geertje Snip (1743-1778) Cornelisje Kuiper (1757-1780) Trijntje Bakker (1757-1827) |
| Geertje Laan (1748-1836) | 26 April 1748 Broekoord, Andijk, North Holland, Netherlands | 16 May 1836 Andijk, North Holland, Netherlands | Dirk Visser (c1742-1813) |
| Pieter Laan (1751-1826) | |||
| Arien Laan (1754-1805) | |||
| Theodorus Laan (1757-) | |||
Footnotes (including sources)
| ‡ General |