Crew list of Ships hit by U-boats
Joost de Graaf
Merchant Navy. Dutch
| Born | 2 May 1894 | Amsterdam | |
| Died | 2 Jun 1942 | (48) |
Roster information listed for Joost de Graaf
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Triton | Steam merchant | Second Engineer Officer | 2 Jun 1942 (+) | U-558 (1) |