| Surname | Initials | Rank | Army No. | ||
|---|---|---|---|---|---|
| O'Sullivan | J | Lance Corporal | 7260976 | ||
| O'Sullivan | J J | Lance Corporal | 14864548 | ||
| O'Syrett | R | Lance Corporal | P/120 | ||
| O'Toole | A | Lance Corporal | P/15718 | ||
| O'Toole | A | Lance Corporal | 7681433 | ||
| O'borne | W | Private | D/16733 | ||
| O'hara | N | Staff Sergeant | W1033199 | ||
| O'keeffe | J J | Lance Corporal | P/9655 | ||
| OBrien | P P | Corporal | 24918619 | ||
| OBrien | J | Corporal | 25097565 |