Crew list of Ships hit by U-boats
Jan Frederik de Vrijer
Merchant Navy. Dutch
| Born | 29 Jan 1911 | Rotterdam | |
| Died | 13 Sep 1942 | (31) |
Roster information listed for Jan Frederik de Vrijer
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Towa | Steam merchant | Fireman | 11 Dec 1940 | U-96 |
| Suriname | Steam merchant | Fireman | 13 Sep 1942 (+) | U-558 (1) |