Another finalist in Mastermind 1983 is chosen tonight as four more winners from the first round pit their wits against each other at Winchester College.Christopher Hughes (London Underground train driver) - The 'Flashman' novels of George MacDonald FraserFrederick Pegg (schoolteacher) - The life and career of Field Marshal Viscount Montgomery, 1887-1976Nicholas Rennison (bookshop assistant) - Scott's expeditions to the AntarcticSian Thomas (solicitor) - The Thirty Years War, 1618-1648