Aaron's sons were Nadab and Abihu, Eleazar and Ithamar.
Referenced Verses
Num 3:2 : 2 These are the names of the sons of Aaron: Nadab the oldest, and Abihu, Eleazar, and Ithamar.
Num 3:8 : 8 And they will have the care of all the vessels of the Tent of meeting, and will do for the children of Israel all the necessary work of the House.