| Name | Age | Rank |
| O’Connor, John | 25 | Trimmer |
| O’Connor, Thomas Peter | 39 | Bed Room Steward |
| Olive, Charles | 31 | Greaser |
| Olive, Ernest Roskelly | 26 | Clothes Presser Steward |
| Oliver, Harry | 32 | Fireman |
| Olliver, Alfred | 27 | Quartermaster |
| O’Loughlin, Dr., William Francis Norman | 62 | Surgeon |
| Orpet, Walter Hayward | 31 | Saloon Steward |
| Orr, James | 40 | Assistant Vegetable Cook |
| Osborne, William Edward | 32 | Saloon Steward |
| Osman, Frank | 28 | A. B. Seaman |
| Othen, Charles Alfred | 36 | Fireman |
| Owen, Lewis | 49 | Assistant Saloon Steward |