The sons of Izhar were Korah, Nepheg, and Zichri.
6:20 Now Amram took for himself Jochebed, his father's sister, as wife; and she bore him Aaron and Moses. And the years of the life of Amram were one hundred and thirty-seven.
6:21 The sons of Izhar were Korah, Nepheg, and Zichri.
6:22 And the sons of Uzziel were Mishael, Elzaphan, and Zithri.