| Surname | Individuals |
|---|---|
|
van Olffen
|
6 |
|
Olthof
|
1 |
|
Onsteink
|
1 |
|
Onverwacht
|
2 |
|
Ooms
|
2 |
|
Oosterwijk
|
3 |
|
Oostewechel
|
41 |
|
Otten
|
1 |
|
Oudenampsen
|
2 |