'Heads' in the Bible

These are the heads of their fathers’ families:The sons of Reuben, the firstborn of Israel:Hanoch and Pallu, Hezron and Carmi.These are the clans of Reuben.

Aaron’s son Eleazar marriedone of the daughters of Putieland she bore him Phinehas.These are the heads of the Levite families by their clans.