Reginald Crook, 1st Baron Crook

Reginald Douglas Crook, 1st Baron Crook (2 March 1901 – 10 March 1989), was a British civil servant and United Nations official.

A member of the Labour Party, he became a senior civil servant. In 1947 he was raised to the peerage as Baron Crook, of Carshalton in the County of Surrey. He was a Delegate to the United Nations and notably served as Vice-President of the United Nations Administrative Tribunal between 1952 and 1971. He was also Chairman of the National Dock Labour Board from 1951 to 1965. In 1967 he was appointed chairman of the London Electricity Consultative Council and ex officio a part-time member of the London Electricity Board.

Lord Crook married Ida Gertrude, daughter of Joseph Haddon, in 1922. She died in 1985. Lord Crook died in March 1989, aged 88, and was succeeded in the barony by his only son Douglas.

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