Gezin: Jacob Elbertzen Koster / Marretje Jansen Bouwman (F2844)
getr. 15 apr 1798 | Elbert Cornelisse Koster (1741-1807) 
|
 | Cornelia Claasse Smit (1739-1783)
|
| Jannetje Elbertszen Koster (1767-1793)  |
| Klaas Elbertz Koster (1771-1814) |
| Hendrik Elbertsze Koster (1772-1838) |
| Cornelis Elbertsz Koster (1775- ) |
| Claasje Elberts Koster (1777- ) |
| Jan Jacobsz Bouwman (1737-1816)
|
| Anne Barentsz Boddewijk (1752-1829)
|
| Barend Jansz Bouwman (1779-1855) |
| Jacob Janze Bouwman (1785-1866) |
| Peeter Janz Bouman (1789- ) |
| Piet Janz Bouman (1790- ) |
| Hendrik Janz Bouwman (1793-1862) |
| Marretje Jansen Bouwman (1777-1823)
|
| Jacob Elbertzen Koster (1776-1831)
|
| Cornelia Jacobs Koster (1799-1867) |
| Jan Jacobz Koster (1800-1875) |
| Elbert Jacobs Koster (1801- ) |
| Elbert Jacobz Koster (1807-1866) |
| Marretje Jacobs Koster (1809- ) |
| Joanna Japiks Koster (1810- ) |
| Anna Koster (1812-1814) |
| Klaasje Koster (1814-1866) |
| Anna Koster (1817-1817) |
| Klaas Koster (1818-1892) |