She was the sister-in-law of the actress and comedian Joyce Grenfell and aunt of the politician William Waldegrave, and her brother-in-law was Lord Ballantrae, Governor-General of New Zealand.
[3] On 2 December 1938, she married Lt.-Col. (George) Patrick Campbell-Preston DL MBE (1911–1960), the son of Col. Robert William Pigott Clarke Campbell-Preston (1865-1929) and his wife, Mary Augusta Margaret Nicol Thorne (1884-1930), and nephew of Gen. Sir Augustus Francis Andrew Nicol Thorne.
[4] Patrick, an officer in the Black Watch at the time of their marriage, was an equerry to Lord Tweedsmuir during the 1930s and was later imprisoned at Colditz Castle during the Second World War.
[1][2] After coming out as a debutante in 1937, Campbell-Preston sailed to Canada the following year to become an informal lady-in-waiting to the viceregal consort, Lady Tweedsmuir.
[1] Campbell-Preston was described as a stalwart of the staff who was not hesitant to ask the Queen Mother difficult questions when other members were reluctant.