Simplify the following text for a Grade 17 native English-speaking person.
Original: Additional members included Soundgarden drummer Matt Cameron , guitarist John McBain ( ex-Monster Magnet and , later , partner of Cameron and Shepherd in Wellwater Conspiracy ) , bassist John Waterman for the self-titled album , vocalist Brian Wood , brother of Mother Love Bone vocalist Andrew Wood , and Alan Davis on bass for The 2nd .
Simplified: Additional members included Soundgarden drummer Matt Cameron , John McBain ( ex-Monster Magnet and , later , partner of Cameron and Shepherd in Wellwater Conspiracy ) , bassist John Waterman for the title album , Alan Davis on bass for The 2nd , and Brian Wood , brother of Mother Love Bone vocalist Andrew Wood .