Crew list of Ships hit by U-boats
Karl Johan Adolf Fredrik Hummer
Merchant Navy. Danish
| Born | 1910 | ||
| Died | 7 Oct 1942 | (32) |
Roster information listed for Karl Johan Adolf Fredrik Hummer
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Boringia | Motor merchant | Able Seaman | 7 Oct 1942 (+) | U-159 (1) |