12 The sons of Kohath were Amram, Izhar, Hebron, and Uzziel — four in all.
1 Chronicles 23:12 Cross References - CAB
Exodus 6:18
18 Amram, Izhar, Hebron, and Uzziel. And the years of the life of Kohath were one hundred and thirty-three years.
Numbers 3:27
27 To Kohath belonged one division, that of Amram, and another division, that of Izehar, and another division, that of Hebron, and another division, that of Uzziel: these are the divisions of Kohath, according to number.
Numbers 26:58
58 These are the families of the sons of Levi; the family of the Libnites, the family of the Hebronites, the family of the Korahites, and the family of the Musites; and Kohath begot Amram.
1 Chronicles 6:2
2 And the sons of Kohath were Amram, Izhar, Hebron, and Uzziel.