Julius Hallervorden (1882-1965): A neuropathologist who examined brains of individuals murdered during the Nazi euthanasia program at the Kaiser-Wilhelm-Institut für Hirnforschung in Berlin-Buch. Hugo Spatz (1888-1969): The director of the Kaiser-Wilhelm-Institut for Brain Research in Berlin-Buch and later the director of the Max Planck Institute for Brain Research in Frankfurt am Main.