| Surname | Individuals |
|---|---|
|
Birnie
|
1 |
|
Cardinaal
|
1 |
|
Folkersma
|
9 |
|
van Holkema
|
2 |
|
Kroon
|
1 |
|
van der Loeff
|
1 |
|
Stam
|
1 |
|
Tjalsma
|
1 |