| Surname | Individuals |
|---|---|
|
Ibsen
|
3 |
|
Ifversen
|
12 |
|
Ilum
|
1 |
|
Ingildsdatter
|
1 |
|
Ioana
|
1 |
|
Isachsen
|
1 |
|
Iversdatter
|
1 |
|
Iversen
|
3 |