Crew list of Ships hit by U-boats
Olaf Birger Knutsen
Merchant Navy. Norwegian
Roster information listed for Olaf Birger Knutsen
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Trolla | Steam merchant | Gunner | 25 Aug 1942 | U-438 |
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
| Trolla | Steam merchant | Gunner | 25 Aug 1942 | U-438 |