Chelub the brother of Shuhah was the father of Mehir, who was the father of Eshton.
We may observe in these verses, 1. That here is a whole family of craftsmen, handicraft tradesmen, that applied themselves to all sorts of manufactures, in which they were ingenious and industrious above their neighbours, Ch1 4:14. There was a valley where they lived which was, from them, called the valley of craftsmen. Those that are craftsmen are not therefore to be looked upon as mean men.
Commenting on 1 Chronicles 4:11-23
And Chelub the brother of Shuah begat Mehir,.... If Shuah is the same with Hushah, Ch1 4:4, then Chelub was the son of Ezer: which was the father of Eshton; not the prince of a place called Eshton, as Vatablus; for it is the name of a man, the son of Mehir, and who in the next verse is said to beget sons.
1Ch 4:11-12 The genealogy of the men of Rechah. - As to their connection with the larger families of Judah, nothing has been handed down to us. Chelub, another form of the name Caleb or Chelubai (see 1Ch 2:9 and 1Ch 2:18), is distinguished from the better known Caleb son of Hezron (1Ch 2:18 and 1Ch 2:42), and from the son of Jephunneh (1Ch 4:15)...
Commenting on 1 Chronicles 4:11-12