| McKay | W | 4310 | Private | Wounded. Magersfontein, 11 December 1899
1st Battalion.
Source: South African Field Force Casualty Roll | Highland Light Infantry |
| McKay | W | 2281 | Private | 2nd Btn. Wounded at Urtpoort. 12 Oct 1900.
Source: Natal Field Force Casualty Roll, page 170 line 36 | Gordon Highlanders |
| McKay | W | | | 1st Battalion. Attached 18th MI
Source: QSA and KSA medal rolls | (Duke of Albany's Ross-shire Buffs) Seaforth Highl |
| McKay | W | 5692 | Private | Wounded. Magersfontein, 11 December 1899
2nd Battalion.
Source: South African Field Force Casualty Roll | (Duke of Albany's Ross-shire Buffs) Seaforth Highl |
| McKay | W | | | 3rd Battalion
Source: QSA and KSA medal rolls | (Duke of Albany's Ross-shire Buffs) Seaforth Highl |
| McKay | W | | Sergeant | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Bulawayo Field Force |
| McKay | W | | | 1st Battalion
Source: QSA and KSA medal rolls | Gordon Highlanders |
| McKay | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | Gordon Highlanders |
| McKay | W | | | 4th Battalion
Source: QSA and KSA medal rolls | Cheshire Regiment |
| McKay | W | | | 1st Battalion
Source: QSA and KSA medal rolls | Loyal North Lancashire Regiment |
| McKay | W | 1731 | Private | 1st Battalion
Demise: Died of disease 07 Jun 1900
Place: Kroonstad
Source: In Memoriam by S Watt | (Princess Louise's) Sutherland and Argyll Highland |
| McKay | W | 4438 | Lance Corporal | 4th Battalion
Demise: Died of disease 01 Feb 1901
Place: Springfontein
Source: In Memoriam by S Watt | Cheshire Regiment |
| McKay | W | | Private | Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Natal Rangers |
| McKay | W | | Seaman | Natal 1906 (0)
Source: Recipients of the Natal 1906 Medal | Natal Naval Corps |
| McKay | W | | | 1st Battalion
Source: QSA and KSA medal rolls | King's Own Scottish Borderers |
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