The fourth Baron Derwent served in the Conservative administration of which British statesman of the Conservative Party who served as Prime Minister from October 1963 to October 1964?
Baron Derwent: Baron Derwent, of Hackness in the North Riding of the County of York, is a title in the Peerage of the United Kingdom. Baron Derwent:  On his death in 1949 the titles passed to his younger brother, the fourth Baron. Baron Derwent:  He served in the Conservative administrations of Harold Macmillan and Sir Alec Douglas-Home as Minister of State for Trade and Minister of State for Home Affairs. Alec Douglas-Home: Alexander Frederick Douglas-Home, Baron Home of the Hirsel, ( ; 2 July 1903 – 9 October 1995) was a British statesman of the Conservative Party who served as Prime Minister from October 1963 to October 1964.
Sir Alec Douglas-Home