| Orr | W | | | Source: Medal rolls | (Princess Louise's) Sutherland and Argyll Highland |
| Orr | W | | | 1st Battalion
Source: QSA and KSA medal rolls | East Lancashire Regiment |
| Orr | W | 7669 | Sapper | QSA (5) CC OFS Tr SA01 SA02
TNA ref 156/98 | Royal Engineers, Field Company, 12th |
| Orr | W | | | 3rd Battalion
Source: QSA and KSA medal rolls | Highland Light Infantry |
| Orr | W | | | Source: QSA and KSA medal rolls | South African Constabulary |
| Orr | W | | | 1st Battalion. Volunteer Service Company
Source: QSA and KSA medal rolls | Durham Light Infantry |
| Orr | W G | | Able Seaman | QSA (2) TH RoL. Ref: 172.765.
Source: QSA medal rolls | HMS Terrible |
| Orr | W J | | | 5th Battalion
Source: QSA and KSA medal rolls | Royal Irish Rifles |
| Orr | W J | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Irish Rifles |
| Orr | William | | | 2nd Battalion
Source: QSA and KSA medal rolls | (Duke of Albany's Ross-shire Buffs) Seaforth Highl |
| Orr | William | 38631 | Private | Source: QSA Medal Rolls | 142nd Company, 31st Btn, IY |
| Orr-Ewing | J A | | Major | Demise: Killed in action 28 May 1900
Place: Kheis
Source: In Memoriam by S Watt | 5th Company, 2nd Btn, IY |
| Orr-Ewing | James Alexander | | Captain | Source: QSA Medal Rolls | 5th Company, 2nd Btn, IY |
| Orr-Ewing | James Alexander | | Major | He was killed in action at Kleis, May 28th, 1900. He was the younger son of Sir Archibald Orr-Ewing, first baronet, was born 1857, and educated at Harrow and Trinity College, Cambridge, becoming MA in 1889. Major Orr-Ewing, who was a very keen and popular sportsman, and a good rider and fisherman, married, in 1898, Lady Margaret Frances Susan, daughter of and sister of the Duke of Roxburghe, and left one daughter, Millicent Lilian Elizabeth. He joined the 16th Lancers in 1880, was promoted Lieutenant 1881, Captain 1888, and Major 1896. Retiring from the 16th Lancers he joined the Reserve of Officers, and was gazetted a Captain in the Warwickshire Yeomanry, 1898, a Company of which he commanded at the time of his death. He was ADC to Lord Londonderry (Lord Lieutenant of Ireland) from 1885 to 1890, and ADC to Field Marshal Earl Roberts (Commander in Chief in Ireland, from 1895 to 1896).
Source: Donner | 2nd Battalion, Imperial Yeomanry |
| Orrar | H | 4767 | Private | QSA (3)
Source: List of QSAs with the clasp Talana from the Talana book | (Princess Victoria's) Royal Irish Fusiliers |
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