Numbers 26:58
These are the families of the Levites: the family of the Libnites, the family of the Hebronites, the family of the Mahlites, the family of the Mushites, the family of the Korathites. And Kohath begat Amram.
Numbers 3:21
Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites.