HAHN Peter 8.11.1923 - 28.8.2007After a short struggle with cancer, Peter died at home with his cat, Macek, and his family at his side.He and his younger brother Frank, the Cambridge economist, were born in Berlin. Their parents, Arnold and Maria Hahn had their roots in the Jewish communities, German and Czech speaking respectively, in what is now the Czech Republic. In 1934 the family moved back to Prague, where Peter attended an English high school. Once again keeping a step ahead of the Nazi tide, the family emigrated to London in 1938. In 1941, Peter started his university studies at Swansea. His studies were interrupted a year later, when he enlisted in the Czech squadron of the RAF. He returned to Prague after the war, although most of his family made their home in Britain. In medical school, he met Nadezda Novozamska, who became his wife in 1948. In 1949, they had their first son, Gena, in 1954 their second, Martin. In 1953, Peter started his career as a medical researcher at the Physiological Institute of the Czechoslovak Academy of Sciences. He specialized in the physiology and biochemistry of infant nutrition, in particular enzymes and the metabolism of fats. He did pioneering work in what is now a major research area: the effect of early nutrition on later development and health. His work was internationally recognized and widely cited and, in 1966, he was invited to spend four months visiting Stanford University. When the Soviet invasion of Czechoslovakia forced yet a fourth emigration upon him in 1968, he wrote half a dozen postcards to colleagues at various institutions and received 18 offers of positions from universities around the world. The offers included ones from institutions like MIT and Oxford University. Of all the countries that the Hahns could have chosen, Canada offered the best chance of a peaceful, prosperous life for a family of immigrants in possession of one suitcase of personal belongings and 500 pounds sterling. Peter accepted the position UBC offered and, as of October 5th, 1968, Vancouver has been his and his family's home. His work at UBC's Centre for Developmental Medicine continued to bring him worldwide recognition, his natural pedagogical talent made him an outstanding course instructor and graduate supervisor. One of his greatest legacies is a large group of scientists who trained in his lab and continue to advance the areas of research he helped found. Peter Hahn was a fellow of The Royal Society of Canada, The Academy of Sciences of the Czech Republic and The American Society for Nutritional Sciences. Since his retirement in 1989, he and Nada lived a quiet life in West Vancouver with their cat, Macek, visiting the Czech Republic frequently. His devotion to Nada was all the greater in recent years, after her Alzheimer's disease diagnosis was confirmed.Peter was a man of great wit and charm, a voracious reader, a steadfast friend to many people, and a casual one to many more (as well as to dogs, cats, lemurs and other animals he met). He had an insatiable curiosity, disdained convention, despised pretense, and categorically refused to get old and set in his ways. His humour could bite, his social informality could offend; but he was one of the kindest, gentlest people to walk this earth. He leaves behind a great void, many warm memories, and a central mystery: how could a man who couldn't make a cup of coffee without getting coffee grounds into every kitchen drawer be so successful at running a complex biochemical laboratory?He is survived by his wife of 59 years, Nada; his brother Frank and his wife Dorothy; his son Gena and his wife Dominique Sotteau; and his son Martin, his wife Kathleen Akins, and their children Majka and Lev. Macek looks for him every day. At Peter's request, there will be no service. Please do not send flowers but think of a charity instead: cancer research, Amnesty International, Plan Canada. His family can be contacted at (604) 926-1602, firstname.lastname@example.org, or hahn@ iro.umnotreal.ca .