| Last Name | First Name | M.I. | Rank | Service/Serial # | Branch | War/Conflict | Cemetery/Memorial | Entered From | Unit |
|---|---|---|---|---|---|---|---|---|---|
| O'Hara | Robert | E. | Master Sergeant | 33138285 | U.S. Army Air Forces | World War II | East Coast Memorial | Pennsylvania | Air Corps |
| O'Kelley | Thomas | L. | Second Lieutenant | 0-757500 | U.S. Army Air Forces | World War II | East Coast Memorial | North Carolina | 758th Bomber Squadron, 459th Bomber Group, Heavy |
| O'Leary | Walter | F. | Seaman First Class | 511008 | U.S. Coast Guard | World War II | East Coast Memorial | Illinois | |
| O'Malley | Harry | J. | Boilermaker Second Class | 3813985 | U.S. Navy | World War II | East Coast Memorial | California | |
| O'Moore | Thomas | J. | Staff Sergeant | 36350752 | U.S. Army Air Forces | World War II | East Coast Memorial | Illinois | 526th Bomber Squadron, 379th Bomber Group, Heavy |
| O'Neal | Charles | B. | Chief Machinist's Mate | 2675653 | U.S. Navy | World War II | East Coast Memorial | Florida | |
| O'Neal | James | T. | Steward's Mate First Class | 2635237 | U.S. Navy | World War II | East Coast Memorial | North Carolina | |
| O'Neal | Morris | A. | Seaman First Class | 3422323 | U.S. Navy | World War II | East Coast Memorial | Missouri | |
| O'Neil | Carl | F. | Staff Sergeant | 16044299 | U.S. Army Air Forces | World War II | East Coast Memorial | Michigan | 417th Bomber Squadron, 25th Bomber Group, Medium |
| O'Neil | Eugene | G. | Aviation Chief Machinist's Mate | 3813089 | U.S. Navy | World War II | East Coast Memorial | California |