A small point about file names: the Paradox files for MIG90.db etc.
are about the Migrants outside of the village, whereas the TzMig files are
about the persons inside the village who have become migrants. There is
some overlap in persons in these files, but most of the MIG90 folks are NOT
in the master fichero because they were never living there during a census.
N.B. We have not begun yet to document the extensive data on migrants.