Reuben was the firstborn of Israel. These were the descendants of Reuben: The Hanochite clan from Hanoch, the Palluite clan from Pallu,
Jewish Publication Society of America Version (JPS1917) - Numbers 26:5 >Reuben, the first-born of Israel: the sons of Reuben: of Hanoch, the family of the Hanochites; of Pallu, the family of the Palluites;