Sir Con O'Neill (1912-88) was a diplomat. He led the British officials in the delegation to negotiate Britain's membership of the European Union (formerly the European Economic Community), 1969-72. Details are given in Who Was Who.

Correspondence and papers of Sir Con O'Neill, mainly concerning Britain's relations with the European Union.

The papers were given to the Library in 1995.

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Diplomatic and consular service, British

O'Neill | Con Douglas Walter | 1912-1988 | Sir | Knight Diplomat

European Union