Alan Turing

Birth Name: Alan Mathison Turing

Date of Birth: 23 June, 1912

Place of Birth: Maida Vale, London, England, U.K.

Date of Death: 7 June, 1954

Place of Death: Wilmslow, Cheshire, England, U.K.

Ethnicity: Anglo-Irish, Scottish, English, possibly around 1/32 French

Alan Turing was a British mathematician, logician, and computer pioneer. He was known for his WWII-era work at Bletchley Park, Britain’s codebreaking centre, and for pioneering work in computers in the late 1940s, particularly at the National Physical Laboratory and the Computing Machine Laboratory. He is known as “the father of computer science.”

Alan was the son of Ethel Sara (Stoney) and The Rev. Julius Mathison/Matheson Turing. His father was born in Edwinstowe, Nottingham. His mother was born in Tamil Nadu, India, to parents from Ireland, and was raised in County Clare, Ireland. His father’s Turing family was a Scottish family of merchants, that had been based in the Netherlands for a time; his father also had English and Anglo-Irish ancestry. Alan’s mother’s family were Anglo-Irish Protestant gentry.

In 1952, Alan was prosecuted for “gross indecency” for his relationship with another man; he is believed to have committed suicide, in 1954.

The surname Turing is said to be of Norman origin.

Alan’s patrilineal line can be traced to The Rev. Walter Turing, who was born, c. 1670, in Foveran, Aberdeenshire, Scotland, the son of John Turing and Jean Seaton.

Alan’s paternal grandfather was The Rev. John Robert Turning (the son of John Robert Turing and Jean Steuart/Stewart “Jane” Fraser). Alan’s grandfather The Rev. John was born in Jakarta, Indonesia, and was chaplain of Trinity College, Cambridge. Alan’s great-grandfather John was born in Vlissingen, Zeeland, Netherlands, the son of John Turing, whose family was part of the civil service in the Dutch East Indies; and of Margaret Tennant/Tennent, who was born in Kampvere, a Scottish enclave in Zeeland. John’s mother, Martha de Colnet, had a French surname. Alan’s great-grandmother Jean was born in Aberdeen, Aberdeen City, Scotland, the daughter of Alexander Fraser, who was Provost of Aberdeen; and of Agnes Dingwall Fordyce.

Alan’s paternal grandmother was Fanny Montague Boyd (the daughter of Gen. Mossom Boyd and Charlotte Loftie). Fanny was born in West Bengal, India. Mossom was born in Derry, Ireland, the son of Mossom Boyd. Alan’s great-grandmother Charlotte was born in Mumbai, Maharashtra, India, the daughter of Billington Loftie, who was from Wingham, Kent, England, and was a surgeon in the East India Company; and of Johanna.

Alan’s maternal grandfather was Edward Waller Stoney (the son of Thomas George Stoney and Anna Henrietta Waller). Edward was born in Tipperary, Ireland, and was chief engineer of the Madras Railways. Thomas was born in County Clare, Ireland, the son of George Butler Stoney, whose maternal grandmother was born in Shepbourne, Kent, England; and of Marianne Smyth/Smith. Alan’s great-grandmother Anna was born in Borrisokane, Tipperary, Ireland, the daughter of Thomas Maunsell Waller and Margaret Vereker.

Alan’s maternal grandmother was Sarah Crawford (the daughter of John Crawford and Jane Caroline Crawford). Sarah was born in County Longford, Ireland. John was born in County Longford, the son of David Crawford and Sarah Caldwell. Alan’s great-grandmother Caroline was born in Clongesh, County Longford, the daughter of George Crawford and Mary West.

Sources: Genealogies of Alan Turing – https://www.wikitree.com
https://www.findagrave.com
https://www.geni.com
https://famouskin.com

Family history of Alan Turing – https://www.cambridge.org