Webster(i)
17 And these were the sons of Levi, by their names; Gershon, and Kohath, and Merari.
18 And these are the names of the sons of Gershon by their families; Libni, and Shimei.
19 And the sons of Kohath by their families; Amram, and Izehar, Hebron, and Uzziel.
20 And the sons of Merari by their families; Mahli, and Mushi: these are the families of the Levites, according to the house of their fathers.
21 Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites.
22 Those 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.