| Armstrong | Joseph | 9243 | Private | Source: Nominal roll in WO127 | Thorneycroft's Mounted Infantry |
| Armstrong | Joseph | 26438 | Trooper | Source: Nominal roll in WO127 | Queenstown Rifle Volunteers |
| Armstrong | Joseph | 30 | | Occupation: Bricklayer. Next of kin: Brother. Address: Port Elizabeth .
Source: Attestation paper in WO126 | Town Guard and District Mounted Troops |
| Armstrong | Joseph | 1994 | | Attested: Aug 1899. Source: CMP1 | Cape Police |
| Armstrong | Joseph | 41755 | Trooper | No known Company. Served in 33rd Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Armstrong | Joseph | 42317 | Trooper | No known Company. Served in 34th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Armstrong | Joseph | 36298 | Private | Source: QSA Medal Rolls | 13th Company, 5th Btn, IY |
| Armstrong | Joseph | | Trooper | Served 26 Dec 1899 to 05 Jan 00. Discharged, services no longer required
Source: Nominal roll in WO127 | Nesbitt's Horse |
| Armstrong | Joseph | | Trooper | Served 07 Mar 1900 to 31 Oct 1900. Discharged completion of service No. 5 Co.
Source: Nominal roll in WO127 | Border Horse |
| Armstrong | Joseph John | 335 | Trooper | Source: OZ-Boer database | New South Wales, 5th Battalion Australian Commonwe |
| Armstrong | Joseph Johnson Talbot | 28894 | Private | Source: Nominal roll in WO127 | Rand Rifles |
| Armstrong | L | | | Source: QSA and KSA medal rolls | New Zealand, 7th Contingent |
| Armstrong | L | | | 1st Battalion
Source: QSA and KSA medal rolls | (Princess of Wales's Own) Yorkshire Regiment |
| Armstrong | L | | | 3rd Battalion
Source: QSA and KSA medal rolls | Royal Scots (Lothian Regiment) |
| Armstrong | L E | | | Source: WO100/279 | Natal Government Railways |
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