On 12 September 1943, Bruce was commissioned as a Second Lieutenant in the 3rd (Armoured) Bn Scots Guards[6][7] and was wounded during Operation Bluecoat, the breakout from Normandy in August 1944.
Elgin has held a number of business appointments, including as President of the Scottish Amicable Life Assurance Society (1975–1994), and Chairman of the National Savings Committee for Scotland.
In 1980, he was appointed by Queen Elizabeth II as her Lord High Commissioner to the General Assembly of the Church of Scotland and reappointed in 1981.
In 1959 he married Victoria Mary Usher and they have five children: The Countess of Elgin and Kincardine was the Patron of both the Royal Caledonian Ball and Edinburgh’s Queen Margaret University.
[24] He was interviewed by the BBC as part of a project to record the memories of Second World War veterans, marking the 80th anniversary of D-Day on 6 June 2024.
[25] On 15 November 2024, Bruce's wife of 65 years, Victoria, Countess of Elgin, died aged 85.