He moved into the steel industry to write technical reports for Operations Research (OR) scientists. There he found satisfaction in solving production problems, studied OR, mathematics, statistics and computing leading to an external degree from University College London. He moved into steel research and became head of process computing and statistics. Much of his work was in design and analysis of experiments for which he received his PhD. When the laboratories closed he joined the medical faculty of University of Sheffield where he was statistician to a multi-centre study of cot death. He taught medical statistics to undergraduates, supported post graduates and medical staff with consultancy and co-authored one of the first interactive statistics packages to be written on Prime computers. Tony moved to Belfast as professor of medical computing and statistics at Queen's University. Early retirement enabled him to work as a research consultant. Greenfield's passion was to persuade all scientists and engineers to write, speak and present their work in language that other people understand well enough to use in some ways. And, like W B Yeats, he asks scientists to "think like a wise man but communicate in the language of the people." Like Isaac Asimov, he was ""on fire to explain,"" and didn't ""indulge in scholarly depth."" He believed strongly that the economic fortune of Europe depends on the success in the world markets of our manufacturing industries. ""Statisticians and statistical practitioners across Europe know that statistical methods have improved business and industrial performance and can continue do so in the future,"" he says. ""Our national quality of life will be improved and secured if we can communicate the philosophy, as well as the methods, of statistics to engineers and others in the manufacturing and the service industries." ""Businessmen and engineers need to understand the benefits of applied probability and statistics; they need to understand how the methods are applied to their own work; they need to be fully converted to a frame of mind that will make them automatically question sources of variability in everything that they do and, without outside prompting, adopt the statistical approach." He and others founded ENBIS to stimulate the application of statistical methods to economic and technical development and to business and industry across the whole of Europe. They have created a networking forum for the exchange of ideas between statistical practitioners. He has spread this passion by speaking in many cities across Europe from Tel Aviv, through Turin, Budapest, Ljubljana, Copenhagen, Brussels and London. Tony was a member of the "Longstone Local History Society", the "Bakewell Photographic Circle", "Writers in the Peak", the "Hucklows Community Spirit", and the "Parisot (Tarn-et-Garonne)/Hucklows Twinning Committee".