Numbers 3:21 YLT

¹⁹  And the sons of Kohath, by their families, 'are' Amram and Izhar, Hebron and Uzziel.

²⁰  And the sons of Merari by their families 'are' Mahli and Mushi; these are the families of the Levites, by the house of their fathers.

²¹  Of Gershon 'is' the family of the Libnite, and the family of the Shimite; these are the families of the Gershonite.

²²  Their numbered ones, in number, every male from a son of a month and upward, their numbered ones 'are' seven thousand and five hundred.

²³  The families of the Gershonite, behind the tabernacle, do encamp westward.