Crew list of Ships hit by U-boats
Karl Johan Nilsen
Merchant Navy. Norwegian
| Born | 9 May 1899 | Glemmen | |
| Died | 28 Feb 1941 | (41) |
Roster information listed for Karl Johan Nilsen
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Benjamin Franklin | Motor merchant | Fourth Engineer Officer | 19 Feb 1941 (+) | U-103 (1) |