Numbers 4:21-33

Aaron : a son of Amram; brother of Moses,son of Amram (Kohath Levi); patriarch of Israel's priests,the clan or priestly line founded by Aaron

Gershon : the clan of Gershom/Gershon of the tribe of Levi

Gershonites : the clan of Gershom/Gershon of the tribe of Levi

Ithamar : son of Aaron

Merari : the clan of Merari of the tribe of Levi

Moses : a son of Amram; the Levite who led Israel out of Egypt and gave them The Law of Moses,a Levite who led Israel out of Egypt and gave them the law