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Alexander, (Conel) Hugh O'Donel (1909–1974), chess player and cryptanalyst, was born in Cork on 19 April 1909, the eldest of four children of Conel William Long Alexander (1879–1920), professor of engineering at University College, Cork, and his wife, Hilda Barbara Bennett (1881–1964), of ...

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R. E. Anderson

revised by Anita McConnell

Babington, John (bap. 1604, d. after 1635), soldier and mathematician, was baptized on 21 August 1604 at St Nicholas Acon in the City of London, the son of John Babington and his wife, Dorothie Rosse. No details of his life are known beyond those disclosed in his book ...

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Cooper, Joshua Edward Synge (1901–1981), cryptanalyst and intelligence officer, was born on 3 April 1901 in Fulham, the son of Richard Edward Synge Cooper, a chartered engineer, and his wife, Mary Eleanor, youngest daughter of William Burke. Joshua was the eldest of five children, four sons and a daughter, all brought up in ...

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D'Arcy, Patrick [known as Chevalier Patrice D'Arci], Count D'Arcy in the French nobility (1725–1779), soldier and mathematician, was born in Galway on 17 February 1725, the third son of John D'Arcy (d. 1743) and his wife, Jane, daughter of Sir Robert Lynch, ...

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Denniston, Alexander Guthrie [Alastair] (1881–1961), cryptanalyst and intelligence officer, was born on 1 December 1881 at Greenock, the eldest child of James Denniston, a medical practitioner, and his wife, Agnes Guthrie. He was educated at Bowdon College, Cheshire, and at the universities of ...

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Alexander Guthrie Denniston (1881–1961) by Lafayette, 1933 © National Portrait Gallery, London

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Dunn, Samuel (bap. 1723, d. 1794), teacher of mathematics and navigation, was born in Crediton, Devon, and baptized there on 7 February 1723, the son of John (d. 1744) and Alice Dunn. Nothing is known of his own education, which gave him a competence in mathematics, but by the age of nineteen he was keeping his own school and teaching writing, accounts, navigation, and other mathematical sciences. This building was destroyed in the fire which swept through ...

Article

Farquharson, Henry (c. 1675–1739), teacher of mathematics and navigation in Russia, was a son of John Farquharson (d. before 1691), from a branch of the family at Milton, Whitehouse, in west Aberdeenshire. He graduated after broadly based studies as Milne bursar (1691–5) at ...

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Foss, Hugh Rose (1902–1971), cryptanalyst, was born on 13 May 1902 in Kobe, Japan, one of five children of Hugh James Foss (1848–1932), Anglican bishop of Osaka, and his wife, Janet Ovans (b. 1870). He was educated at Hoylake, at Marlborough College...

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Fowler, Sir Ralph Howard (1889–1944), mathematical physicist and weapons researcher, was born at Fedsden, Roydon, Essex, on 17 January 1889, the elder son of Howard Fowler, of Glebelands, Burnham, Somerset, and his wife, Frances Eva, daughter of George Dewhurst, cotton merchant, of Manchester...

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Sir Ralph Howard Fowler (1889–1944) by Walter Stoneman, 1943 © National Portrait Gallery, London

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Glenie, James (bap. 1750, d. 1817), soldier and mathematician, baptized on 7 October 1750 at Leslie, Fife, was the son of John Glenie, army officer, and his wife, Margaret Smith. He went from a parochial school to the University of St Andrews where he made good progress in classics and divinity, being intended for the church, but soon showed a talent for science and mathematics. He joined the ...

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Grey, Nigel Arthur de (1886–1951), cryptanalyst, was born on 27 March 1886 at the rectory, Copdock, Suffolk, the son of the Hon. Arnold de Grey (b. 1856), rector of Copdock, and his wife, Margaret Maria Ponsonby Fane. His father was the son of the ...

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Heydon, Sir John (bap. 1588, d. 1653), royalist army officer and mathematician, was baptized at Saxlingham, Norfolk, on 13 June 1588. He was the second son of Sir Christopher Heydon (1561–1623) of Baconsthorpe, writer on astrology, and his first wife, Mirabel (bap...

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Hilton, Peter John (1923–2010), code breaker and mathematician, was born at 34 Castletown Road, West Kensington, London, on 7 April 1923, the son of Mortimer Jacob Hilton (1893/4–1959), a physician and surgeon who practised in Peckham, south London, and his wife, Elizabeth Amelia, ...

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Hinsley, Sir (Francis) Harry (1918–1998), cryptanalyst and historian, was born on 26 November 1918 at 28 Rowland Street, Walsall, the son of Thomas Henry Hinsley, ironworks waggoner, and his wife, Emma, née Adey. He went to the local elementary school and then to ...

Article

J. K. Laughton

revised by Andrew Lambert

Inman, James (1776–1859), mathematician and writer on navigation, was the younger son of Richard Inman of Garsdale Foot, Sedbergh, Yorkshire. He attended Sedbergh grammar school, and subsequently became a pupil of John Dawson. Although entered at St John's College, Cambridge, in 1794, he did not go into residence until 1796. He graduated BA in 1800 as senior wrangler and first Smith's prizeman, and was elected to a fellowship....

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Jack, Richard (d. 1759), mathematician and military engineer, was born in Scotland, and was living at Broad Garth, Newcastle upon Tyne, in 1737 and in Edinburgh in 1739. In the Caledonian Mercury for 6 November 1739 and 26 September 1743 he advertised himself as giving a course on natural philosophy as well as a complete system of astronomy and geography, in which he would 'demonstrate both in Mathematics and Experiments'. During the Jacobite rising of 1745 ...

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McKendrick, Anderson Gray (1876–1943), mathematician, epidemiologist, and army officer, was born on 8 September 1876 at 1 Chester Street, Edinburgh, youngest of the five children of John Gray McKendrick (1841–1926), professor of physiology in Glasgow, and his wife, Mary Souttar (1842–1896), eldest daughter of ...

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McVittie, George Cunliffe (1904–1988), astronomer and cryptanalyst, was born on 5 June 1904 in Smyrna, Turkey, the eldest of three children (two sons and a daughter) of Francis Skinner McVittie (1872–1950), businessman, and his wife, Emily Caroline (1877–1942), daughter of George Weber from ...