Two candidates here, but for me this pips the QSA to a 2nd Lt awarded a fighting DSO for harrying the Boers on raids from his blockhouse and capturing lots of them.
Alfred Edward Grey
In March 1900 seven colonial soldiers and eight policemen from Nongqai (Zulu) headed north from Natal on mission behind enemy lines. They travelled north through the neutral territory of Swaziland heading for the Delegoa Bay railway line in the South African Republic (SAR). Their objective was to blow up the railway bridge at Komatipoort cutting the railway between the neutral port of Lourenco Marques and Pretoria. Britain was concerned at the volume of men and supplies entering the SAR to help the war effort. Reaching Komatipoort, the men saw the bridge was too heavily guarded so they headed east to Malelane 40 km away.
The bridge at Malelane was unguarded and explosives were laid on the bridge and pump house. On 17 June, the explosives were detonated bringing down the bridge and destroying the pump house. That night a SAR train was derailed by the destruction of the line killing two crew. The men retreated south to Nomahasha in Swaziland on the border with the SAR. From here recruits from refugees from the SAR and Swaziland joined the band and numerous skirmishes were fought against the Boers. On 20 July three boers, Commandant GMJ van Dam, Sgt-Mjr Lombard and Sgt Schribley called at a Swazi homestead enquiring after this troublesome band. They were ambushed by the colonials, Lombard drew his revolver and was shot dead, van Dam was saved from a mortal blow from a Swazi by one of the colonials.
After this, realising Swaziland was not a safe haven, the men returned to Natal to report on their expedition. The success of this expedition led to the British army authorising the creation of Steinaecker’s Corps (later known as Steinaecker’s Horse). The men were from the Colonial Scouts, a unit raised in Natal. Most of the men later served in Steinaecker’s Horse.
The leader of the expedition was Baron FCL von Steinaecker who, back in March had approached Major-General Buller with his plan to blow up bridges on the Delagoa Bay railway line. The man who saved life of Commandant Dam was AE Gray who did not serve in Steinaecker’s Horse but enlisted in the Prince of Wales Light Horse and was later commissioned. His medal, shown here, is engraved to the POWLH.
The QSA was recently sold in the UK without any of this story despite the medal having been on the market since 2002 at least. The story has been published many times; Biographical Register of Swaziland (Huw Jones, University of Natal Press 1993), two articles in the South Africa Military History Journal in 1996 (The Naming of Steinaecker’s Horse, Don Diespecker and The Delagoa Bay Railway and the Origin of Steinaecker’s Horse, Huw Jones) and in Bill Woolmore’s Steinaecker’s Horsemen (Country Life, South Africa 2006). The medal is illustrated in Woolmore’s book, but I don’t think it was part of his collection which was sold by Nobles Numismatics following his death. The map shown in from Woolmore's book.
Gray’s service in Steinaecker’s Horse is noted on the POWLH roll, but he was never a member of that unit which was formed after he left the group. The clue is there.