Crew list of Ships hit by U-boats
Leonard Diederik den Dulk
Merchant Navy. Dutch
| Born | 9 Mar 1920 | Velsen | |
| Died | 6 Dec 1942 | (22) |
Roster information listed for Leonard Diederik den Dulk
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Serooskerk | Steam merchant | Assistant Engineer | 6 Dec 1942 (+) | U-155 (1) |