Numbers 3:19

3:19 The sons of Kohath by their families were: Amram, Izhar, Hebron, and Uzziel.

Numbers 3:27

The Numbering of the Kohathites

3:27 From Kohath came the family of the Amramites, the family of the Izharites, the family of the Hebronites, and the family of the Uzzielites; these were the families of the Kohathites. ¹ 

[3:27]  ¹ sn Both Moses and Aaron came from this line (6:16-20). During the Hebrew monarchy this branch of the line of Levi was exemplary in music (1 Chr 6:33-48). They were also helpful to Hezekiah in his reforms (1 Chr 29:12-14).