| McKay | William | 727 | Trooper | 1st Battalion
Source: QSA Medal Rolls | Scottish Horse |
| McKay | William | 25860 | Sergeant | 1st Battalion
Source: QSA Medal Rolls | Scottish Horse |
| McKay | William | 37197 | Trooper | 1st Battalion
Source: QSA Medal Rolls | Scottish Horse |
| McKay | William | 710 | Private | 1st RPR
Source: Nominal roll in WO127 | Railway Pioneer Regiment |
| Mckay | William | 3244 and 421 | Trooper | 1st & 2nd Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| McKay | William Arthur | 129 | | Source: Medal rolls | Canada, 2nd Canadian Mounted Rifles |
| McKay | William Henry | 25588 | Trooper | Source: QSA Medal Rolls | 24th Company, 8th Btn, IY |
| McKay | William Henry | 858 | Private | Source: OZ-Boer database | Victoria, 5th Mounted Rifles Contingent |
| McKay | William Hugh | 41949 | Trooper | No known Company. Served in 37th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| McKay | William Ninian | 39681 | Trooper | Source: QSA Medal Rolls | 133th Company, 29th Btn, IY |
| McKay | William P | | Trooper | BSACM Rhodesia 1896 (0). On roll as Mackay?. BSACM Rhodesia 1896 (Trooper Gwelo Col). Corbitts Auction 27, date unknown. Sold with GV Specal Constabulary medal named to to Martin McKay.
Source: BSACM rolls | Gwelo Volunteers |
| McKaye | J | 1777 | Private | Wounded. Paardeberg, 18 February 1900
1st Battalion.
Source: South African Field Force Casualty Roll | (Duke of Wellington's) West Riding Regiment |
| McKays | A | | | Source: QSA and KSA medal rolls | 79th Battery, RFA |
| McKcrlie | J | 3194 | Sapper | To Provisional Company 25 May 1902. Discharged. QSA (3) sent 30 Mar 1903 and KSA sent 19 Jan 1904.
QSA (3) CC OFS Tr. KSA
TNA ref 158/103:314/133 | Royal Engineers, Fortress Company, 47th |
| McKeag | Albert White | | | Source: Attestation paper in WO126 | Canadian Scouts |
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