| 1. Albert Koster |
 |
| G: |
07 feb 1836 |
| te: |
De Wijk |
| O: |
13 okt 1882 |
| te: |
De Wijk |
|
| 2. Roelof Alberts Koster |
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| G: |
22 apr 1817 |
| te: |
De Wijk |
| H: |
25 mei 1835 |
| te: |
De Wijk |
| O: |
05 dec 1876 |
| te: |
De Wijk [Rogat] |
|
| 4. Albert Koster |
|
| G: |
19 feb 1783 |
| te: |
De Wijk [Rogat] |
| H: |
30 aug 1816 |
| te: |
De Wijk |
| O: |
26 mei 1834 |
| te: |
De Wijk |
|
| 8. Roelof Alberts Koster |
|
| D: |
27 okt 1754 |
| te: |
Hoogeveen |
| H: |
07 okt 1778 |
| te: |
IJhorst |
| O: |
__ jan 1809 |
| te: |
De Wijk [Rogat] |
|
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|
| 5. Aaltje Wildeboer |
|
| G: |
03 apr 1793 |
| te: |
Staphorst [IJhorst, De Hofstee] |
| O: |
05 mei 1834 |
| te: |
De Wijk |
|
| 10. Cornelis Jans |
=> |
|
| D: |
26 dec 1756 |
| te: |
IJhorst |
| H: |
05 jun 1790 |
| te: |
IJhorst |
| O: |
24 apr 1809 |
| te: |
Staphorst [IJhorst, De Rustede] |
|
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| 6. Derk Hulzebos |
|
| G: |
CA __-__-1760 |
| te: |
Dalfsen |
| H: |
16 sep 1804 |
| te: |
Ruinerwold |
| O: |
02 okt 1833 |
| te: |
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| 12. |
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| 15. |
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1836 - 1882 (46 jaar)