Geoffrey Keynes

Sir Geoffrey Langdon Keynes (/ˈkeɪnz/ KAYNZ; 25 March 1887, Cambridge – 5 July 1982, Cambridge) was an English surgeon and author. He was the younger brother of the economist John Maynard Keynes.

Geoffrey Keynes was the son of John Neville Keynes, an economics lecturer at the University of Cambridge and Florence Ada Brown, a successful author and a social reformer. His older brother was the economist John Maynard Keynes and his sister Margaret married the Nobel Prize–winning physiologist Archibald Hill.

He was educated at Rugby School, where he became friends with Rupert Brooke and was appointed literary executor for the estate of Brooke's death in 1915.

He graduated from Pembroke College, Cambridge, and then qualified as a surgeon with the Royal College of Surgeons in London. He served as a Lieutenant in the Royal Army Medical Corps during World War I and then worked as a consultant surgeon, becoming an expert in blood transfusion.

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