Children |
| 1. Jantje Koster, b. Sat 30 Nov 1822, Wildervank, Groningen, Nederland d. Yes, date unknown [Birth] |
| 2. Roelf Koster, b. Mon 18 Apr 1825, Wildervank, Groningen, Nederland d. Thu 17 Dec 1891, Stadskanaal, Groningen, Nederland (Age 66 years) |
| 3. Harm Koster, b. Wed 25 Oct 1826, Wildervank, Groningen, Nederland d. Sat 27 Jan 1827, Wildervank, Groningen, Nederland (Age 0 years) [Birth] |
+ | 4. Harm Koster, b. Fri 07 Mar 1828, Wildervank, Groningen, Nederland d. Yes, date unknown |
| 5. Roelfien Koster, b. Tue 13 Jul 1830, Wildervank, Groningen, Nederland d. Tue 03 May 1898, Stadskanaal, Groningen, Nederland (Age 67 years) |
| 6. Pieter Koster, b. Sat 31 Mar 1832, Wildervank, Groningen, Nederland d. Yes, date unknown [Birth] |
| 7. Egberdina Koster, b. Wed 18 Mar 1835, Wildervank, Groningen, Nederland d. Mon 01 Oct 1838, Wildervank, Groningen, Nederland (Age 3 years) [Birth] |
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