| Surname | Initials | Rank | Army No. | ||
|---|---|---|---|---|---|
| Ortt | R | Sergeant | 3768095 | ||
| Orwin | S | Lance Corporal | 2656637 | ||
| Orwin | F S | 2nd Lieutenant | 117884 | ||
| Osborn | S B | WOI (RSM) | 550616 | ||
| Osborn | H H | Warrant Officer II | 2654069 | ||
| Osborn | H C | Acting Corporal | P/14268 | ||
| Osborn | J J | Lance Corporal | P/5806 | ||
| Osborn | R L | Lance Corporal | P/12183 | ||
| Osborn | R E | Lance Corporal | 1507897 | ||
| Osborn | G J | Warrant Officer II | 14249911 |