Albert Barnes Commentary 1 Chronicles 8:6

"And these are the sons of Ehud: these are the heads of fathers` [houses] of the inhabitants of Geba, and they carried them captive to Manahath:" — 1 Chronicles 8:6 (ASV)

And they removed them to Manahath — The word “they” has no antecedent, and it is difficult to supply one. Almost all commentators suppose that there has been some corruption here, from which, however, we may gather that the “sons of Ehud” (or, perhaps, of Ahoah, 1 Chronicles 8:4) were originally settled at Geba (see the note on Joshua 18:24), but afterward removed to a place called Manahath, probably a town in the vicinity. Gera, mentioned in 1 Chronicles 8:7, directed the movement.