The sonnes of Leui were Gershom, Kohath and Merari.
Referenced Verses
Exod 6:16 : 16 These also are the names of the sonnes of Leui in their generations: Gershon & Kohath and Merari (and the yeres of the life of Leui were an hundreth thirtie and seuen yere)
1 Chr 6:1 : 1 The sonnes of Leui were Gershon, Kohath, & Merari.