Numbers 4:27

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

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

Deuteronomy 32:50

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

Hor : a mountain on border of Edom),a mountain (on the North border of Israel)