Gradus
Johannes
Martens
Birth date:
1881
Birth place:
Wehl,
,
,
Death date:
Death place:
,
,
,
Martens Family
Parents:
| Father: | Gerhard Martens |
| Mother: | Reinera Loeven |
Spouse:
| Spouse: | Gerharda Maria Kaak |
Siblings:
Children:
