Iron Butterfly ( B17 )

1966–1967

• Doug Ingle – organ, vocals
• Danny Weis – guitar
• Darryl DeLoach – tambourine, vocals
• Jerry Penrod – bass, backing vocals
• Ron Bushy – drums, percussion

1967–1969 (Classic lineup)

• Doug Ingle – organ, vocals
• Ron Bushy – drums, percussion
• Erik Brann – guitar, vocals
• Lee Dorman – bass, vocals

1969–1971

• Doug Ingle – organ, vocals
• Ron Bushy – drums, percussion
• Lee Dorman – bass, vocals
• Mike Pinera – guitar, vocals
• Larry "Rhino" Reinhardt – guitar

Supporting musicians

• Manny Bertematti – drums, percussion (substitute – 1971)

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