Jock Colville

Sir John Rupert "Jock" Colville, CB, CVO (28 January 1915 – 19 November 1987), was a British civil servant. He is best known for his diaries, which provide an intimate view of number 10 Downing Street during the wartime Prime Ministership of Winston Churchill.

Colville came from a politically active and well-connected family, although, as he stated in the introduction to his published diaries, he was the younger son of a younger son and so did not inherit family wealth.

His father was the Hon. George Charles Colville, who was secretary of the Institute of Chartered Accountants and the younger son of Charles Colville, 1st Viscount Colville of Culross, a Conservative politician who served as Master of the Buckhounds and Tory Chief Whip.

His mother was Lady Cynthia, a courtier and social worker. She was the daughter of Robert Crewe-Milnes, 1st Marquess of Crewe, by his first wife, the former Sibyl Graham, daughter of the Graham Baronets of Netherby. Colville never knew his maternal grandmother, who died young; his maternal grandfather, a Liberal Cabinet minister, remarried Margaret (Peggy) Primrose, daughter of Lord Rosebery, Liberal Prime Minister in 1894–1895, and his wife Hannah, heiress to the Rothschild fortune. Lionel Nathan de Rothschild was a close friend of Colville's. Lady Cynthia, in addition to her duties as a Woman of the Bedchamber to Queen Mary, devoted her energies to alleviating the suffering of Shoreditch, one of the poorest areas of the East End of London.

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