Crew list of Ships hit by U-boats
John E. Hannigan
Merchant Marine. American
| Died | 16 May 1942 |
Roster information listed for John E. Hannigan
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | William C. McTarnahan | Motor tanker | Able Seaman | 16 May 1942 (+) | U-506 |
| Died | 16 May 1942 |
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
| William C. McTarnahan | Motor tanker | Able Seaman | 16 May 1942 (+) | U-506 |