1)
Who are "va'Acheihem"?
1.
Malbim (Nechemyah 11:6): They are Bnei Peretz. There it says that there were 690 from Peretz and Zerach together. Nechemyah 11:6 teaches that 468 were Bnei Peretz; we infer that Bnei Zerach were 222.
