Crew list of Ships hit by U-boats
Joseph Mel Heffernan
USNR (6111491). American
Roster information listed for Joseph Mel Heffernan
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | Seakay | Steam tanker | Gunner's Mate Third Class | 19 Mar 1944 | U-311 |
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
| Seakay | Steam tanker | Gunner's Mate Third Class | 19 Mar 1944 | U-311 |