1. Radboud Group for Historical Demography and Family History, Radboud University, Nijmegen, The Netherlands
2. Department of Economic and Social History, Utrecht University, Utrecht, The Netherlands
3. Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
4. International Institute of Social History, Amsterdam, The Netherlands
5. Sociaal Historisch Centrum Voor Limburg, Maastricht University, Maastricht, The Netherlands
6. Department of History, Erasmus University Rotterdam, Rotterdam, Netherlands