Trijntje Pennekamp was born 7 April 1822 in Grootebroek, North Holland, Netherlands to Cornelis Pennekamp (1784-1834) and Antje Komen (1781-1857) and died 1 April 1909 Westersingel, Medemblik, North Holland, Netherlands of unspecified causes. She married Klaas Buis (1824-1895) 9 February 1849 in Zwaag, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Jacob Buis (1850-1930) | 11 March 1850 Lagedijk, Wervershoof, North Holland, Netherlands | 9 December 1930 Medemblik, North Holland, Netherlands | Alida Hoek (1854-1939) |
| Antje Buis (1851-1936) | |||
| Cornelis Buis (1853-1940) | |||
| Pieter Buis (1860-1906) | 17 February 1860 Lagedijk, Wervershoof, North Holland, Netherlands | 15 November 1906 Hem, North Holland, Netherlands | Geertje Grooteman (1864-1912) |
| Klaas Buis (1862-) | |||
| Teunis Buis (1864-1897) | 8 July 1864 Lagedijk, Wervershoof, North Holland, Netherlands | 26 November 1897 Wervershoof, North Holland, Netherlands | Geertje Groot (1865-1900) |
| Jan Buis (1866-1935) | 28 August 1866 Wervershoof, North Holland, Netherlands | 12 January 1935 Daijia, China | |
| Simon Buis (1868-1896) | |||
Siblings
| Name | Birth | Death | Joined with |
| Pieter Pennekamp (c1813-) | |||
| Klaas Pennekamp (1818-1883) | |||
| Simon Pennekamp (1818-1886) | 13 June 1818 Grootebroek, North Holland, Netherlands | 17 February 1886 Wervershoof, North Holland, Netherlands | Lijsbeth Manshanden (1811-1846) Jantje Meester (1817-1854) Ariaantje Bijvoet (1818-1885) |
| Name | Birth | Death | Joined with |
| Sijmon Pennekamp (1820-1889) | 23 August 1820 Grootebroek, North Holland, Netherlands | 18 December 1889 Medemblik, North Holland, Netherlands | Cornelia Haakman (1819-1896) |
| Trijntje Pennekamp (1822-1909) | 7 April 1822 Grootebroek, North Holland, Netherlands | 1 April 1909 Westersingel, Medemblik, North Holland, Netherlands | Klaas Buis (1824-1895) |
| Jacob Pennekamp (1824-1901) | |||
Residences
Footnotes (including sources)
| ‡ General |
| ₪ Wedding |
| ¶ Death |