Crew list of Ships hit by U-boats
John Birks
Merchant Navy. British
| Born | 1921 | Wallasey, Cheshire | |
| Died | 31 Mar 1942 | (21) |
Roster information listed for John Birks
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | San Gerardo | Steam tanker | Fireman | 31 Mar 1942 (+) | U-71 (1) |