Crew list of Ships hit by U-boats
John McMahon
Merchant Navy. British
| Born | 30 Apr 1922 | Liverpool | |
| Died | 11 Apr 1943 | (20) |
Roster information listed for John McMahon
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Ingerfire | Steam merchant | Ordinary Seaman | 11 Apr 1943 (+) | U-613 |