| Nicholson | W H | | | Source: QSA and KSA medal rolls | Frontier Light Horse |
| Nicholson | W H | | | Source: QSA and KSA medal rolls | Coldstream Guards |
| Nicholson | W H | | | Source: QSA and KSA medal rolls | Vallentin's Heidelberg Volunteers |
| Nicholson | W N | | | 1st Battalion
Source: QSA and KSA medal rolls | Suffolk Regiment |
| Nicholson | W S | | | Source: QSA and KSA medal rolls | New Zealand, 10th Contingent |
| Nicholson | Walter | 32035 | Trooper | Source: QSA Medal Rolls | 41st Company, 4th Btn, IY |
| Nicholson | Walter | 533 | Trooper | Source: Nominal roll in WO127 | Colonial Scouts |
| Nicholson | Walter Edmund | 29029 | Trooper | Source: QSA Medal Rolls | 111th Company, 3rd Btn, IY |
| Nicholson | Walter Herbert | 2213 | Trooper | Source: OZ-Boer database | New South Wales, 3rd Contingent NSW Mounted Rifles |
| Nicholson | Wilfred | | Trooper | Source: Nominal roll in WO127 | Gorringe's Flying Column |
| Nicholson | William | 2690 | Sergeant | Source: OZ-Boer database | New South Wales, 3rd Contingent NSW Mounted Rifles |
| Nicholson | William (Sir) | | General | Transport re-organisation. MID LG: 16 April 1901, page: 2598. Source: Field Marshal Roberts. 2 April 1901. Re: General mentions
This page contains all the London Gazette pages for the Boer War | Staff |
| Nicholson | William Arthur K | 110 | Trooper | Source: Nominal roll in WO127 | Rhodesia Regiment |
| Nicholson | William Drummond | 9139 | Sergeant | Source: QSA Medal Rolls | 20th Company, 6th Btn, IY |
| Nicholson | William F | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Gwelo Volunteers |
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