| Surname | Initials | Rank | Army No. | ||
|---|---|---|---|---|---|
| O'Brien | T | Lieutenant | 484778 | ||
| O'Brien | S D | Captain | 554816 | ||
| O'Brien | J | Lance Corporal | 76883330 | ||
| O'Brien | W H | Sergeant | 19036251 | ||
| O'Brien | W | Lance Corporal | 2695556 | ||
| O'Brien | J | Lance Corporal | 3661200 | ||
| O'Brien | S S | Lance Corporal | 3952693 | ||
| O'Byrne | B T | Lance Corporal | 14337364 | ||
| O'Callaghan | C T | Colonel | 11737 | ||
| O'Callaghan | J | Lance Corporal | P/16698 |