Crew list of Ships hit by U-boats
Michael Pierce O'Brien
RNVR. British
| Born | 1924 | ||
| Died | 15 Jun 1944 | (20) |
Roster information listed for Michael Pierce O'Brien
| Ship | Type | Rank / role | Attacked on | Boat | |
|---|---|---|---|---|---|
 | HMS Blackwood (K 313) | Frigate | Sub-Lieutenant | 15 Jun 1944 (+) | U-764 |