Is Konitz the living (name) jazz musician with the longest working career? His first work is with Teddy Hill in 1945, 68 years ago. That's amazing. The recording ban just prior makes this tough, but did anyone else of note who's still alive record before then? Roy Haynes, Sonny Rollins, & Barry Harris are close but all three played bebop, whereas Konitz was still working in the swing/big band idiom, which makes it a bit more impressive still; such a link to such a particular time.