Crew list of Ships hit by U-boats
Vincent Butkowski
Merchant Marine. American
| Died | 13 May 1942 |
Roster information listed for Vincent Butkowski
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Gulfpenn | Steam tanker | Second Assistant Engineer | 13 May 1942 (+) | U-506 |