The son of James Harris, 5th Earl of Malmesbury, Harris was educated at Eton and Trinity College, Cambridge and, as a surveyor, joined and served in the Royal Hampshire Regiment.
After leaving the army, he served in a variety of positions, all of which involved forestry, agriculture, or surveying work.
The family seat was Greywell Hill House, near Farnham in Hampshire.
They had three children:, He married secondly, Margaret Campbell-Preston (d. 1994) in 1991 and thirdly, Bridget Hawkings on 5 July 1996.
This biography of an earl in the peerage of Great Britain is a stub.