| Alder | A G | | | Source: QSA and KSA medal rolls | 88th Battery, RFA |
| Alder | A.C. | | | Source: Attestation paper in WO126 | Brabant's Horse |
| Alder | Cecil Comyn | 13500 | Trooper | Source: QSA Medal Rolls | 73rd Company, 12th Btn, IY |
| Alder | E J | | | Source: WO100/231 | City Imperial Volunteers |
| Alder | Edward Charles | 39124 | Lance Corporal | Source: QSA Medal Rolls | 128th Company, 28th Btn, IY |
| Alder | F | 16110 | Sergeant | Permanent Staff attached to 8th Company RMRE (M).
QSA (3) CC OFS SA01
TNA ref 161/58; 161/74 | Royal Engineers, Volunteers, Royal Monmouthshire |
| Alder | Francis Robert | | Lieutenant | Source: Nominal roll in WO127 | Western Light Horse |
| Alder | Francis Robert | 25 | Corporal | Source: OZ-Boer database | Victoria, 4th Imperial Contingent |
| Alder | G | | | Source: WO100/252 | Imperial Military Railways |
| Alder | G | 6128 | Trooper | Demise: Died of disease 27 Dec 1900
Place: Lindley
Source: In Memoriam by S Watt | 58th Company, 15th Btn, IY |
| Alder | G | | | 1st Battalion
Source: QSA and KSA medal rolls | Northumberland Fusiliers |
| Alder | G | | | 1st Battalion
Source: QSA and KSA medal rolls | Oxfordshire Light Infantry |
| Alder | G W | | | Source: WO100/225 | St John Ambulance Brigade |
| Alder | G W | 814 | Private | Demise: Died of disease 07 Jun 1900
Place: Bloemfontein
Source: In Memoriam by S Watt | St John Ambulance Brigade |
| Alder | G W | 814 | Private | Died of disease. Bloemfontein, 7 June 1900
Civ Surgn/Vol Amb
Source: South African Field Force Casualty Roll | St John Ambulance Brigade |
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