Numbers 3:24

And the chief of the house of the fathers of the Gershonites,
&c.] Who had the chief authority over them, and the chief direction of them in what they were to do: [shall be] Eliasaph the son of Lael;
but who he was, or of which family of the Gershonites, whether of the Libnites or Shimites, is not said here or elsewhere; nor do the Jewish writers, who affect to know every thing, pretend to tell us.