Crew list of Ships hit by U-boats
Joannes Baptist de Greef
Merchant Navy. Dutch
| Born | 20 May 1883 | Ossendrecht | |
| Died | 11 Mar 1943 | (59) |
Roster information listed for Joannes Baptist de Greef
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Brant County | Steam merchant | Stoker | 11 Mar 1943 (+) | U-86 |