Sølvi Sogner, a longtime IUSSP member, passed away in 2017. She was a Norwegian historian whose principal focus was on historical demography. From 1957 to 1964, she worked as scientific assistant at the Norwegian Institute of Local History (Norsk lokalhistorisk institutt). She became associate professor at the University of Oslo in 1974 and professor from 1988 to 2002. She was a member of the Norwegian Academy of Sciences from 1994 and head of the International Commission for Historical Demographic Research (ICHD).
Sølvi Sogner became an IUSSP member in 1971 and participated in many IUSSP Conferences and events. She helped organize the 1988 seminar on Women's Position and Demographic Change in the Course of Development, in Asker, Norway and co-edited with Nora Federici and Karen Oppenheim Mason the volume based on that seminar entitled Women's Position and Demographic Change (Oxford University Press, 1993). In 2016, she co-edited with Antoinette Fauve-Chamoux and Ioan Bolovan an overview of the history of the International Commission for Historical Demography (ICHD) entitled A Global History of Historical Demography. Half a Century of Interdisciplinarity (Peter Lang, 2016).