Alfred Kempe
Mathematician
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Sir Alfred Bray Kempe FRS was a mathematician best known for his work on linkages and the four colour theorem. Wikipedia
Born: July 7, 1849, Kensington, London, United Kingdom
Died: April 21, 1922 (age 72 years), London, United Kingdom
Award: Fellow of the Royal Society (1881)
Partner: Mary Bowman (1877–)
Parents: John Edward Kempe