Llewellin was elected
Member of Parliament (MP) for
Uxbridge in
Middlesex in 1929. He held a number of ministerial posts in the Coalition government, eventually serving as
President of the Board of Trade for two weeks in 1942. He subsequently became
Minister of Aircraft Production until replaced by
Sir Stafford Cripps in November 1942. Later, Llewellin served on the
Combined Policy Committee set up by the British and
United States governments under the
Quebec Agreement of 1943 to oversee the construction of the
atomic bomb. In December 1943, Llewellin's seat on the committee was assumed by Sir Ronald Campbell and Llewellin became
Minister of Food, the position he held until the Churchill government fell to the
Labour Party of
Clement Attlee in July 1945. Llewellin lost his seat in the election and was raised to the peerage as
Baron Llewellin, of
Upton in the
County of Dorset. After the war he served as
Governor General of the
Federation of Rhodesia and Nyasaland between 1953 and his death in January 1957. ==Personal life==