He was s of 2nd Baron ABERCONWAY 1879-1953 and Christabel Mary Melville 1890-1974 d of Sir Melville Leslie MACNAGHTEN CB 1853-1921 (gs of Sir Francis WORKMAN-MACNAGHTEN 1st Bt 1763-1843) and Dora Emily 1860-1929 d of Rev Robert Edward SANDERSON 1828-1910 and Dorinthea Phelps OLDHAM 1827-1907. He m 1973 Jane Elizabeth b 1939 reg Q2 London d of James Matthew BARRIE 1913-2000 by his 1938 m reg Q2 London to Nesta Evelyn REID 1915-81, and had a son (Robert Melville b 1974: m 2005 and has two sons (Lucas & Scott) and a dau (Lara Jane Christabel b 1976: m 2007 and has a dau (Eliza)).