Before boxing, what did they do?

This is hard to dig out without reading a lot of biographies.

What kind of work did boxers do before they started boxing?

Here are the few I have heard about:


Ali didn't do any kind of work as far as I know.
Frazier was a butcher.
Willard was a wheat farmer.
Marciano did manual labor on highways and worked in a shoe factory.
Dempsey was a hobo and did what he had to to eat.
Liston was a thief and convict.
Fitzsimmons was a blacksmith.
Jeffries was a boilermaker.

Any more?