The Memorial Plaque is inscribed:
IN LOVING MEMORY OF CLIVE SKENE KEITH CAPTAIN 3RD DC COMMANDING THE DUKE OF CAMBRIDGE'S CORPS IMPERIAL YEOMANRY KILLED AT THE BATTLE OF LINDLEY 29TH MAY 1900
The Battle of Lindley (27-31 May 1900; also known as the Lindley Affair) was a Anglo Boer War engagement in which Boer Commandos forced the surrender of the 13th Battalion Imperial Yeomanry.
Further reading
THE LINDLEY AFFAIR: The Capture of the 13th Battalion Imperial Yeomanry by the Boer forces
Memorials in the Cathedral
Captain Clive Keith
Battle of Boomplaats
Lt Col Frederick Miller VC Memorial
Captain George Pilkington, RE
Colonel Edmund Hartley VC, CMG
3rd Dragoon Guards Anglo-Boer War Roll of Honour