John Drummond was the only son of Captain Malcolm Drummond, JP, DL, and the Hon. Geraldine Margaret Tyssen-Amherst, daughter of
Lord Amherst of Hackney and one of seven sisters. He was born, brought up and lived much of his life at
Megginch Castle in the Carse of Gowrie, Perthshire, Scotland. He had three sisters – Jean, Victoria Alexandrina and Frances Ada. His middle sister,
Victoria Drummond, MBE (who was a goddaughter of
Queen Victoria), distinguished herself as the first woman marine engineer in Britain and won the
Lloyd's War Medal for bravery. At the age of 24, on the death of his father, he inherited his ancestral home and estate, Megginch. On 8 February 1928, he married Violet Margaret Florence Jardine, daughter of Sir Robert William Buchanan Jardine, 2nd Baronet (Managing Director of
Jardine Matheson), and granddaughter of
Sir Robert Jardine, 1st Baronet. They had three daughters: •
Jean Cherry, 16th Baroness Strange (1928–2005), m. Captain Humphrey Evans (later Drummond of Megginch), MC. •
Adam Drummond, 17th Baron Strange, the eldest of her six children, inherited her title. • Heather Mary (1931-2025), m. Lt Cmdr Andrew Christian Currey, RN, whose son is the astrologer
Robert Currey. • Margaret April Irene (b. 1939), m. Sir Quentin
Agnew-Somerville, 2nd Baronet, whose daughter is the actress
Geraldine Somerville. ==Barony of Strange==