C. H. O'D. Alexander
| Conel Hugh O'Donel Alexander | |
|---|---|
 |
|
| Country | Ireland UK |
| Born |
19 April 1909 Cork, County Cork, Ireland, |
| Died | 15 February 1974 (aged 64) Cheltenham, Gloucestershire, England, UK |
| Title | International Master (1950) |
Conel Hugh O'Donel Alexander, CMG, CBE (19 April 1909 – 15 February 1974), was an Irish-born British cryptanalyst, chess player, and chess writer. He worked on the German Enigma machine at Bletchley Park during the Second World War, and was later the head of the cryptanalysis division at GCHQ for over 20 years. In chess, he was twice British chess champion and earned the title of International Master. He was usually referred to as C.H.O'D. Alexander in print and Hugh in person.
Hugh Alexander was born into an Anglo-Irish family on 19 April 1909 in Cork, Ireland, the eldest child of Conel William Long Alexander, an engineering professor at University College, Cork (UCC), and Hilda Barbara Bennett. His father died in 1920 (during the Irish War of Independence), and the family moved to Birmingham in England where he attended King Edward's School. He won a scholarship to study mathematics at King's College, Cambridge, in 1928, graduating with a first in 1931. He represented Cambridge in chess.
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