| Surname | Initials | Rank | Army No. | ||
|---|---|---|---|---|---|
| O'Shea | P A | Sergeant | 13071283 | ||
| O'Shea | P D | Sergeant | 14618125 | ||
| O'Sulivan | G | Private | 6851326 | ||
| O'Sullivan | M | Lance Corporal | P/1400 | ||
| O'Sullivan | T F | Lance Corporal | P/2527 | ||
| 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 |