Crew list of Ships hit by U-boats
John Clark
Merchant Navy. British
| Born | 1910 | Hulford | |
| Died | 17 Mar 1942 | (32) |
Roster information listed for John Clark
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | San Demetrio | Motor tanker | Third Engineer Officer | 17 Mar 1942 (+) | U-404 (1) |