Numbers 3:20 KJV

18And these are the names of the sons of Gershon by their families; Libni, and Shimei.

19And the sons of Kohath by their families; Amram, and Izehar, Hebron, and Uzziel.

20And the sons of Merari by their families; Mahli, and Mushi. These are the families of the Levites according to the house of their fathers.

21Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites.

22Those that were numbered of them, according to the number of all the males, from a month old and upward, even those that were numbered of them were seven thousand and five hundred.