Raymond Hanley O'Brien
| Born | January 13, 1906 |
| Died | April 7, 1943 |
| Service Branch | Navy reserve |
| Rank | MM2C |
| Rating or Job | Machinist Mate |
| Unit | USS Aaron Ward (DD-483) |
| Campaign | World War II |
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| Honors | |
| Family | |
| Notes | KIA/MIA/BNR Ship was torpedoed at Tinete Point of Florida Island in Iron Bottom Sound, Near Guadalcanal, Solomon Islands Listed on the Tablets of the Missing, Manila American Cemetery and Memorial Fort William McKinley Cemetery @ Fort Bonifacio, in Taguig City, Manila, Philippines Memorial headstone: Chico Cemetery |
| Sources | Additional research by Bill Edmiston |
| Mementos |