Archibald David Kennedy, 7th Marquess of Ailsa, OBE, DL (3 December 1925 – 7 April 1994), styled Earl of Cassillis from 1 June 1956 to 31 May 1957, was a Scottish peer and chief of Clan Kennedy.
Kennedy was born at Brick Kiln Farm, Colchester, Essex, [1] the only son of Lord Angus Kennedy (the third son of 3rd Marquess of Ailsa), and Gertrude Millicent Cooper.
[2] In early life, as David Kennedy, he worked as a steam locomotive fireman and, as Marquess, ran the Isle of Man Railway as lessee for the 1967–1971 seasons.
[2] In 1956, his father, Lord Angus, succeeded his childless elder brothers as the 6th Marquess of Ailsa, at which point Archibald became known by the courtesy title Earl of Cassillis.
[2] He married Mary (3 May 1916 – 17 August 2007, Edinburgh),[4] daughter of coal miner John Burn, of Amble, Northumberland,[5] on 7 April 1954 and they had three children:[2]