Eliza Manningham-Buller [SEP] educated at
Margaret Hall, Oxford, before joining the Security Service. She was recruited to the Security Service at a drinks party when someone suggested that she see someone at the Ministry of Defence. Specializing in counter-terrorism rather than MI5's then-classical counter-espionage, she was active at the time of the Lockerbie bombing by Libya in 1988. She worked for K-branch against the IRA. During the early 1980s she was reportedly one of only five people aware that Oleg Gordievsky, the deputy head of the KGB at
John Manningham-Buller, 2nd Viscount Dilhorne
John Mervyn Manningham-Buller, 2nd Viscount Dilhorne (born 28 February 1932) is a British peer and barrister.
Background and education.
Lord Dilhorne is the son of Reginald Manningham-Buller, 1st Viscount Dilhorne, and Lady Mary Lindsay, daughter of David Lindsay, 27th Earl of Crawford. His sister is Eliza Manningham-Buller, Baroness Manningham-Buller, the former head of MI5. He was educated at Eton and the Royal Military Academy, Sandhurst.