Numbers 3:24

24 The leader of the families of the Gershonites was Eliasaph son of Lael.

Read Numbers 3:24 Using Other Translations

And the chief of the house of the father of the Gershonites shall be Eliasaph the son of Lael.
with Eliasaph, the son of Lael as chief of the fathers' house of the Gershonites.
The leader of the Gershonite clans was Eliasaph son of Lael.