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Obituaries
Nécrologies

Nathan Keyfitz – 29 June 1913-6 April 2010

Nathan Keyfitz died Tuesday, April 6, 2010 at the age of 96.

Born in Montreal, Nathan Keyfitz began his career as a statistician in Ottawa. He worked as a statistician with Statistics Canada, then called the Dominion Bureau of Statistics, in Ottawa. After leaving Statistics Canada he taught at a number of universities: the University of Toronto, the University of Montreal, the University of Chicago, University of California at Berkeley and finally at Harvard, where he taught from 1972 to 1983, and at Ohio State University from 1981 to 1983. After his retirement from Harvard and Ohio State, he spent 10 years (1984-1993) at the International Institute for Applied Systems Analysis (IIASA) in Austria.

Famous for his publications on population dynamics, particularly Introduction to the Mathematics of Population and Applied Mathematical Demography, Nathan Keyfitz left a rich and diverse body of scholarship exemplified in the inventory of his "papers" given to the library of Harvard University http://oasis.lib.harvard.edu/oasis/deliver/~hua17002.

Nathan became a member of the IUSSP in 1950. In 1997, Nathan received the IUSSP Laureate Award for his contributions to the advancement of population sciences and distinguished service rendered to the IUSSP. He was active member of the IUSSP for 60 years, serving the Union in a number of different capacities and in particular on the Scientific Committee on Biological and Social Correlates of Mortality, which lead to the publication of Population and Biology edited by N. Keyfitz and published in 1984 by Ordina Editions.

He will no longer be with us, but his work will continue to inspire many of us.

Nathan Keyfitz – 29 Juin 1913-6 Avril 2010

Nathan Keyfitz s'est éteint mardi 6 avril 2010, à l'âge de 96 ans.
Né à Montréal, Nathan Keyfitz a commencé sa carrière comme statisticien à Ottawa. Il a ensuite enseigné à Toronto, à Montréal, à Chicago, et à Berkeley avant d'être professeur à Harvard, de 1972 à 1983 et à l’Ohio State University 91981-1983). Après sa retraite de Harvard et de l’Ohio State University, il a passé 10 ans (1984-1993) à l’International Institute for Applied Systems Analysis (IIASA), en Autriche.

Célèbre pour ses écrits sur la dynamique des populations (en particulier Introduction to the Mathematics of Population et Applied Mathematical Demography), Nathan Keyfitz laisse une œuvre importante et diverse, comme en témoigne l'inventaire de ses "papiers" donnés à la bibliothèque de l'Université d'Harvard. (http://oasis.lib.harvard.edu/oasis/deliver/~hua17002).

Nathan Keyfitz est devenu membre de l’UIESP en 1950. En 1997, il a obtenu le prix du Lauréat de l’UIESP en reconnaissance de ses contributions exceptionnelles aux avancées de la démographie et des services rendus à l’Union.  Il est resté un membre actif de l’Union pendant 60 ans officiant au sein de comissions scientifiques, notamment pour le comité « Corrélats biologiques et sociaux de la mortalité » pour lequel il a révisé le volume Population and Biology publié en 1984 par les Editions Ordina.
Très attaché à la France (il lisait chaque semaine un magazine français, pour ne rien perdre de la vie politique et sociale française), c'est une grande figure de la démographie qui disparaît.