| Jeffrey | C | | | Source: QSA and KSA medal rolls | New Zealand, 10th Contingent |
| Jeffrey | C | | | Source: WO100/283 | King Williamstown TG |
| Jeffrey | Charles Hall | 3123 | Sergeant | Source: QSA Medal Rolls | 14th Company, 5th Btn, IY |
| Jeffrey | D | 8861 | Driver | Died of disease. Johannesburg, 10 February 1901
Source: South African Field Force Casualty Roll | 78th Battery, RFA |
| Jeffrey | D | 8861 | Driver | Demise: Died of disease 10 Feb 1901
Place: Johannesburg
Source: In Memoriam by S Watt | 78th Battery, RFA |
| Jeffrey | D | | | Source: WO100/285 | Queenstown TG |
| Jeffrey | Daniel | 4880 | Private | QSA (3) DoL LN Belf
Provisional list of recipients
Source: Ladysmith Siege Account and Medal Roll | (Prince Consort's Own) Rifle Brigade |
| Jeffrey | Douglas Cuthbert | 9174 | Private | Source: QSA Medal Rolls | 20th Company, 6th Btn, IY |
| Jeffrey | E | 25377 | Corporal | Accidentally killed. Stormberg, 28 October 1899
Source: South African Field Force Casualty Roll | Royal Engineers, Railway Company, 8th |
| Jeffrey | E | 25377 | Corporal | Demise: Killed accidentally 28-10-1899
Place: Stormberg
Source: In Memoriam by S Watt | Royal Engineers, Railway Company, 8th |
| Jeffrey | E R | | | Source: QSA and KSA medal rolls | South African Constabulary |
| Jeffrey | E W | | | Source: QSA and KSA medal rolls | Coldstream Guards |
| Jeffrey | E W H | | Private | CGHGSM (1) Bechuanaland
Source: Roll of the CGHGSM | Queenstown Rifle Volunteers |
| Jeffrey | Edmund | 182 | Private | Source: OZ-Boer database | New South Wales, 1st Contingent NSW Mounted Rifles |
| Jeffrey | F | | | 4th Battalion
Source: QSA and KSA medal rolls | King's Royal Rifle Corps |
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