Andrew BoyleAndrew Philip More Boyle (27 May 1919 – 22 April 1991) was a Scottish journalist and biographer. His biography of Brendan Bracken won the 1974 Whitbread Awards and his book ''The Climate of Treason'' exposed Anthony Blunt as the "Fourth Man" in the Cambridge Five Soviet spy ring.
He was born in the Scottish city of Dundee and was educated at Blairs in Aberdeen and the University of Paris. During the Second World War he was part of Britain's military intelligence in the Far East. After the war he joined the BBC as a radio scriptwriter and producer. In 1965 he was the founding editor of the BBC Radio 4 programme ''The World At One'' which "gained a reputation as one of the best informed news programs and won an audience of four million".
He also wrote the definitive biographies of Lord Trenchard, the father of the Royal Air Force and Erskine Childers, Irish Nationalist and author. Provided by Wikipedia