Matthew Poole and continuators on 1 Chronicles 7:20

20 And the sons of Ephraim; Shuthelah, and Bered his son , and Tahath his son, and Eladah his son, and Tahath his son,

Either 1. the son of Shatelah; and so Tahath the son of Bered; and so the rest, which make up seven succeeding Generations. Or, 2. the son of Ephraim, and so Tahath is the son not of Bered, but of Ephraim, and so forward. And thus all these were Brethren, and Sons or Grandchildren of Ephraim living together at one time with their Father. Obj. This cannot be because then Ephraim had two sons called Shathelah, and two called Tahath. Ans. That might easily happen; either because the first Shathelah and Tahath were dead before the other two of those Names were born: or because two of them were Ephraims Sons, and two of them his Grandchildren called after their Uncles Names. For this is certain the Name of Sons is promiscuously used concerning immediate Children, and Grandchildren, and Great Grandchildren.