| Male Hendrik Koster |
| Birth | Abt 1823 | Barsingerhorn |
| Death | Aft 1874 | Schagen |
| Burial | ||
| Marriage | 1 May 1847 | Barsingerhorn |
| Father | ||
| Mother | ||
| Female Antje Dekker |
| Birth | 21 Oct 1816 | Schagen |
| Death | Aft 1874 | Schagen |
| Burial | ||
| Father | Cornelis Wijbrands Dekker | F1734 Group Sheet | |
| Mother | Antje Cornelis Bakker | F1734 Group Sheet | |