| Simpson | Thomas | 43219 | Trooper | No known Company. Served in 39th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Simpson | Thomas | 11108 | Trooper | Source: QSA Medal Rolls | Imperial Yeomanry |
| Simpson | Thomas | 36284 | Private | Source: QSA Medal Rolls | 13th Company, 5th Btn, IY |
| Simpson | Thomas Edward | 357 | Private | Source: OZ-Boer database | West Australia, 6th Mounted Infantry Contingent |
| Simpson | Tom | 9218 | Trooper | Source: Nominal roll in WO127 | Thorneycroft's Mounted Infantry |
| Simpson | Tom Thorp | | Lieutenant | He died of dysentery at Schhoeman's Kloof on April 30th, 1901. He was a son of Dr W S Simpson, was born in May 1877, and educated at Lancing College. He entered the Shropshire Light Infantry from the 4th Battalion in May 1899, being promoted Lieutenant August 1900. Lieutenant Simpson had served with the 2nd battalion of his regiment in South Africa from the commencement of the war.
Source: Donner | (King's) Shropshire Light Infantry |
| Simpson | W | 2938 | Private | 2nd Battalion
Source: QSA roll | (Princess Victoria's) Royal Irish Fusiliers |
| Simpson | W | | | 1st Volunteer Service Battalion
Source: QSA and KSA medal rolls | Loyal North Lancashire Regiment |
| Simpson | W | | | 6th Battalion
Source: QSA and KSA medal rolls | (Duke of Cambridge's Own) Middlesex Regiment |
| Simpson | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | South Wales Borderers |
| Simpson | W | 7355 | Lance Corporal | 1st Battalion
Source: QSA roll | Loyal North Lancashire Regiment |
| Simpson | W | | | 1st Battalion
Source: QSA and KSA medal rolls | South Staffordshire Regiment |
| Simpson | W | 20125 | | Source: Attestation paper in WO126 | Brabant's Horse |
| Simpson | W | | | 1st Battalion
Source: QSA and KSA medal rolls | (Queen's Own) Cameron Highlanders |
| Simpson | W | | | Source: QSA and KSA medal rolls | South African Constabulary |
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