Bowe fought way after 29. But yeah, shocking to realize he was so young (yet looked so shot) in Golota 2
Bowe retired at 29. The guy who came back years later was not Riddick Bowe. That was Brain damage Bubba. Bowe thought for legacy. Bubba fought for a sandwich and a 40.
Benny Leonard and Barney Ross both retired at 28. Although Leonard come back in his mid 30s after the Depression.