| Surname | Individuals |
|---|---|
|
Jacobsdatter
|
6 |
|
Jacobsen
|
30 |
|
Jacobsson
|
3 |
|
Jægergaard
|
1 |
|
Jakobsen
|
6 |
|
Jankowski
|
3 |
|
Jansen
|
3 |
|
Jarvis
|
1 |
|
Jasmer
|
1 |
|
Jennings
|
1 |
|
Jensdatter
|
12 |
|
Jensen
|
226 |
|
Jeppesdatter
|
2 |
|
Jeppesen
|
13 |
|
Jeppsson
|
2 |
|
Jepsen
|
3 |
|
Jervelund
|
3 |
|
Jespersen
|
3 |
|
Jessen
|
4 |
|
Jett
|
2 |
|
Johannesdatter
|
1 |
|
Johansdatter
|
3 |
|
Johansen
|
8 |
|
Johnsen
|
7 |
|
Johnson
|
3 |
|
Johnsson
|
1 |
|
Jonasson
|
1 |
|
Jones
|
2 |
|
Joos
|
5 |
|
Jørgensdatter
|
13 |
|
Jørgensen
|
124 |
|
Josefsen
|
2 |
|
Justesen
|
1 |