| 1. Feike Roskamp |
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| B: |
Sunday 16 March 1873 |
| P: |
Stadskanaal, Groningen, Nederland |
| D: |
Tuesday 08 October 1940 |
| P: |
Ter Apelkanaal, Vlagtwedde, Groningen, Nederland |
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| 3. Hindertje Roskamp |
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| B: |
Wednesday 26 December 1838 |
| P: |
Onstwedde, Groningen, Nederland |
| D: |
Monday 16 December 1907 |
| P: |
Musselkanaal, Onstwedde, Groningen, Nederland |
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| 6. Hindrik Christiaans Roskamp |
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| B: |
Saturday 12 May 1810 |
| P: |
Bunderhammrich, Ostfriesland, Niedersachsen, Deutschland |
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Tuesday 30 January 1883 |
| P: |
Nieuwe Pekela, Groningen, Nederland |
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| 7. Feike Jans Lammers |
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| B: |
1802 |
| P: |
Weener, Ostfriesland, Niedersachsen, Deutschland |
| D: |
Thursday 12 October 1848 |
| P: |
Stadskanaal, Groningen, Nederland |
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1873 - 1940 (67 years)
