Exodus 6:17-19

6:17 The sons of Gershon, by their families, were Libni and Shimei.

6:18 The sons of Kohath were Amram, Izhar, Hebron, and Uzziel. (The length of Kohath’s life was 133 years.)

6:19 The sons of Merari were Mahli and Mushi. These were the clans of Levi, according to their records.