Isabelle Rabault-Mazières is Associate Professor at the University Paris 1 Panthéon-Sorbonne and member of the Centre d’histoire du XIXe siècle / ISOR. She is a specialist in urban history and has worked on the birth of the residential suburbs of Paris in the 19th century. She is currently working on the capital levy tax returns of well-to-do Parisians in 1945.