(...from Steve Hofman Music Forum)
The list is missing POCO, The Eagles, Loggins & Messina....cut off I guess
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The John Mayall family tree is pretty impressive too.....Yardbirds.John Mayall, Cream Jeff Beck Clapton Led Zep FleetwoodMac etc though not as extensive
what else? Frank Zappa....oh yeah...also has connections to Buffalo Springfield ...Zappa's drummer, bassists all a part of Springfield at one time, Turtles, Little Feat, Rhinoceros...