Sjouke de Graaf–
- Name
- Sjouke de Graaf
| Birth of a son #1 | Reitze de Graaf March 6, 1902 |
| Family with Wikje Bierma |
| himself | |
| wife |
Wikje Bierma Birth: January 4, 1870 — Oost Dongeradeel |
| son |
Reitze de Graaf Birth: March 6, 1902 — Oost Dongeradeel |