Our project would not have been possible without the generous financial support of several foundations. The idea for it emerged from the Excellence Project of the Czech Republic's Grant Agency, number 19-26638X, entitled Genocide, post-war migration and social mobility: entangled experiences of Roma and Jews (project leader: Kateřina Čapková). The work of other members of our team is generously funded by the Bader Philanthropies Foundation, which is also a major supporter of other activities of the Prague Forum for Romani History at the Institute for Contemporary History of the Czech Academy of Sciences. We are extremely grateful to the Bader Foundation for their support. Funds from Strategy 21AV's Global Conflicts and Local Contexts programme were also used for additional work on the database.