Conversation so far:
Where did the band Sly and the Family Stone start out?
Sly and the Family Stone was an American band from San Francisco.
Did Sly & the Stoners and Freddie & the Stone Souls compete with each other during the early years?

Question: What other members were welcomed into the family?
Self-contained rewrite: What other members were welcomed into Sly & the Stoners besides the Freddie & the Stone Souls members?