Duggan was sent first to
Wixenford, a fashionable prep school, and then to
Eton College, where he was placed in Goodhart's House of which he became captain. His near-contemporary
Anthony Powell described him at Eton as reading a great deal despite being "never in the least .. part of the Eton .. intellectual world". Powell identified Duggan as being witty, something of a show-off, but with a strong vein of melancholy, and a stylish rider in
point to point racing.
Evelyn Waugh thought of Duggan as handsome and amusing, but melancholy. and went to Argentina to convalesce. When he had recovered, Duggan went up to
Christ Church, Oxford in summer term of 1923. He immediately took an intense dislike to life at
Oxford, falling into depression and wistfully speaking of the girls of Argentina. Anthony Powell, who was then at
Balliol College, reported once seeing Lord Curzon (then
Chancellor of the University) talking to Duggan who had not yet got out of bed. ==Army life==