Kommentar zu Divrej Hajamim I 2:54

The sons of Salma: Bethlehem The sons of Salma were inhabitants of Bethlehem.

and the Netophathites, Atroth Beth Joab and also of the inhabitants of Netophoth and Atroth Beth Joab, half the province of the Manahtite the people of Zorah seized for themselves and dwelled in them. They are names of places, (II Sam. 28:29f.): “Maharai the Netophathite... Baanah the Netophathite,” David’s mighty men. And Manahath [is also a name of a place, as below (8:6)]: “... and they exiled them to Manahath.”