Naentske Gerbens Koopmans–
- Name
- Naentske Gerbens Koopmans
| Birth of a daughter #1 | Janke Obma July 17, 1884 |
| Family with Geert Obma |
| husband |
Geert Obma Birth: June 10, 1857 — Ferwerderadeel |
| herself | |
| daughter |
Janke Obma Birth: July 17, 1884 — Ferwerderadeel |