Sijtje Kuiper was born 20 November 1798 in Onderdijk, North Holland, Netherlands to Gerrit Kuiper (1774-1816) and Marijtje Koedooder (1770-1816) and died 13 January 1861 Wervershoof, North Holland, Netherlands of unspecified causes. She married Jacob Bakker (1779-aft1823) 14 November 1819 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Jan Bakker (1821-?) | |||
| Klaas Bakker (1823-aft1855) | 1 October 1822 Wervershoof, North Holland, Netherlands | 21 November 1909 Wervershoof | Geertje Visser (1824-aft1855) |
| Pieter Bakker (1834-1837) | |||
Residences
Footnotes (including sources)
| ‡ General |
| Ω Birth |
| ₪ Wedding |
| ¶ Death |