AYHD is run day-to-day by an executive board. We are always looking for new members!
President: Joris Kok (Radboud University)

Joris Kok is an economic historian and historical demographer with a PhD in Economic and Social History from Leiden University. His PhD research examined the social mobility and integration of Jews in nineteenth- and early-twentieth-century Amsterdam across the life domains of work, marriage, residence, and education. He then worked as a postdoctoral researcher and lecturer at Radboud University, studying social inequalities in cause-specific mortality in Amsterdam. Joris is currently a Research Fellow at Queen’s University Belfast, where he studies inequalities in exposure to indoor and outdoor air pollution across the island of Ireland.
Vice President: Emma Diduch (University of Cambridge)

Emma is a Research Associate in the Faculty of History, University of Cambridge and the Cambridge Group for the History of Population and Social Structure. Her research focuses on the First Demographic Transition in nineteenth-century Britain, and she is working with Campop colleagues on building linked datasets from the full count census records and civil registration registers from 1851 to 1921. Her PhD thesis examined the impact of women’s employment on marital fertility in Derbyshire, with a focus on patterns of child labour and women’s work in the local textile industry.
Board member: Hampton Gaddy (University of Oxford)

Hampton Gaddy is a Postdoctoral Researcher at Magdalen College, University of Oxford and an affiliate of Oxford’s Leverhulme Centre for Demographic Science. His work focuses on estimating the mortality and fertility consequences of social and demographic crises. He completed his PhD at the Department of Economic History at the London School of Economics. His thesis examined the global history, demography, and epidemiology of the 1918 influenza pandemic, using mixed-method sources.
Board member: Brayden Rothe (University of Minnesota)

Brayden Rothe is a social and demographic historian and social scientist of the late nineteenth and early twentieth centuries, with emphasis on the Transregional United States and North America. He is currently a PhD student at the University of Minnesota and the Institute for Social Research and Data Innovation receiving advanced training in population studies and demography. His work currently revolves around estimating the rapidly changing social and industrial landscape in America’s impact on fertility between 1850 and 1950.
Board member: Serena Vigezzi (University of Southern Denmark)
Serena Vigezzi is postdoc in demography, currently affiliated with CPop at University of Southern Denmark and SUDA at Stockholm University. After completing a Master’s in Sociology, she attended the EDSD (cohort 2019/2020). She then obtained a PhD at the University of Southern Denmark, completing a thesis on mortality inequalities, with a focus on living arrangements and mortality crises. She went on to work on the relationship between mortality and fertility. She is currently working on a project studying the long-term demographic effects of mortality crises in Nordic countries.
Previous board members
- Mads Villefrance Perner, PR-Officer Website (2022-2025)
- Mathias Mølbak Ingholt, Secretary (2022-2025)
- Louise Ludvigsen, President (2022-2024)
- Elisabeth Mjaaland, Vice President (2022-2023)
- Tim Riswick, President (2016-2022)
- Evelien Walhout, Secretary (2018-2022)
- Michal Raftakis, PR-Officer Website (2018-2022)
- Sarah Rafferty, PR-Officer Social Media (2019-2022)
- Ryohei Mogi, Vice-President (2019-2021)
- Jeanne Cilliers, PR-Officer Newsletter (2016-2020)
- Stephanie Thiehoff-Klages, PR-Officer Social Media (2016-2018)
- Benjamin Matuzak, Vice-President (2016-2018)
- Edward Morgan, PR-Officer Website (2016-2018)
- Christa Matthys, Secretary (2016-2018)
