Numbers 3:21
Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites.
Nave's Topical Index—AKJV

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.
Nave's Topical Index—AKJV