Educated at
Beaumont College, he was the son of Edward John Drummond-Murray of Mastrick (1907–1976) by (div. 1936) Eulalia Ildefonsa Wilhelmina Heaven (d. 1988), daughter of William Anthony Raymond Heaven (1873–), Aberdeenshire,
JP and wife
Doña Maria Guadelupe Ramirez de Arellano y Braceras, 4th
Marquesa de Braceras, and her paternal uncle was Francis Joseph Heaven (1877–),
Conde de Ramirez de Arellano, He worked as a banker and a stockbroker, but his passion was heraldry and history, in particular, the
Jacobites who numbered among his ancestors, including
William Drummond, 4th Viscount Strathallan. He was also active in charity; he founded a volunteer service to help provide meals on wheels and transport for the housebound. When the nuns at one of Mother Teresa's Scottish hostels had trouble with guests, Drummond-Murray of Mastrick slept in the hostel once a week to keep an eye on things. From 1977 to 1989, he was chancellor of the Sovereign Military Order of Malta in the United Kingdom. He encouraged the order's involvement in establishing nursing homes and a cancer hospice at the
Hospital of St John and St Elizabeth in London, where he was a chief executive from 1978 to 1982. ==Heraldry==