| Surname | Individuals |
|---|---|
|
Jackson
|
1 |
|
Jacobsdatter
|
15 |
|
Jacobsen
|
31 |
|
Jacobson
|
14 |
|
Jakobsen
|
2 |
|
Jansson
|
7 |
|
Jefferson
|
1 |
|
Jensdatter
|
156 |
|
Jensen
|
528 |
|
Jensen-Ipsen
|
1 |
|
Jeppesen
|
19 |
|
Jepsdatter
|
2 |
|
Jepsen
|
34 |
|
Jespersdatter
|
4 |
|
Jespersen
|
7 |
|
Jochumsen
|
1 |
|
Johannesen
|
1 |
|
Johannesson
|
4 |
|
Johansdatter
|
6 |
|
Johansen
|
24 |
|
Johansson
|
20 |
|
Johnson
|
7 |
|
Johnsson
|
1 |
|
Johnston
|
1 |
|
Jokumsen
|
1 |
|
Jonasen
|
1 |
|
Jones
|
1 |
|
Jonsson
|
12 |
|
Jordan
|
1 |
|
Jørgensdatter
|
18 |
|
Jorgensen
|
11 |
|
Jørgensen
|
50 |
|
Josefsen
|
1 |
|
Jungersen
|
1 |
|
Jurkops
|
7 |
|
Justdatter
|
6 |
|
Justesen
|
6 |
|
Juul
|
2 |