Genealogies and Post-Exilic Settlement

1 Chronicles 9:1-2

And all Israel have reckoned themselves by genealogy, and lo, they are written on the book of the kings of Israel and Judah--they were removed to Babylon for their trespass.

And the first inhabitants, who are in their possession, in their cities, of Israel, are the priests, the Levites, and the Nethinim.