Aaron’s son Eleazar married one of the daughters of Putiel, and she bore him Phinehas. These were the heads of the Levite families by their clans.
Jewish Publication Society of America Version (JPS1917) - Exodus 6:25 >And Eleazar Aaron's son took him one of the daughters of Putiel to wife; and she bore him Phinehas. These are the heads of the fathers' houses of the Levites according to their families.