Conversation so far:
How was the Replacements Band formed?
The Replacements' began in Minneapolis in 1978, when nineteen-year-old Bob Stinson gave his eleven-year-old brother Tommy Stinson a bass guitar to keep him off the streets.
How did Bob and Tommy Stinson find the rest of themembers?
That year Bob met Mars, a high school dropout.

Question: How did they find their fourth member
Self-contained rewrite: How did Bob and Tommy Stinson along with Mars find their fourth member?