Which musician retired too soon?

specifically excluding the dead folks:

delevante brothers - quit after 2 great records (n.b. bob d. folllowed with a so-so solo "porchlight")
john croslin - quit the reivers after stage fright problems
glenn mercer and bill million of the (presumably) late, lamented feelies

i'm sure there are a ton of others out there too.

Yeah, we're pretty sure Frank's dead.

Boy,these threads do go far and wide away from topic and I didn't know that retired and dead were synonymous.Not attempting to wade through all of the responses I didn't see Shuggie Otis's name. Now there is a guy that more or less retired before he was twenty.That's really early. Too bad for us. :^(

John Coltrane

after posting john croslin (ex-reivers) in response to this thread last week, i googled his name to follow up. as it turns out, 10+ years after calling it quits... he's back!... with a new band - "the fire marshals of bethlehem". notwithstanding the opaque band name, the music (at first listen) seems worthwhile. it's reminiscent of his old stuff, but prominently features a fiddle (and equally prominently lacks the quirky reivers' harmonies). if you're a fan, it's definately worth checking out.