ABANDONED. Fiction, street fighter with a good heart, set in steam engine era(?), cares for sister(?), takes orphan boy under wing

[Michael]

The main character runs in a rough crowd, fights in unlicensed boxing matches to make extra cash, is unbeatable, crude but smart. He works at a local shipping yard maybe, there is a huge steam engine accident due to a corrupt merchant hiring a couple of killers to disrupt production, our main character gets involved and the killers hunt him, our hero is apparently impossible to kill. He takes car of his sister(?) who is hobbled by some some form of disease or previous accident. He also takes a young runt of an orphan under his wing to act as a runner and they become friends. In the end I believe both killers die and the corrupt merchant sends his full force against our hero trying to kill him. Pretty sure the hero brings down the merchant and dies fighting a multitude of men.

Please feel free to ask any questions, Thanks for Helping!

[Lobstergirl, au gratin]

Michael, are you still looking for this or did you find it?

Around what year did you read it?

[Lobstergirl, au gratin]

No response; moving to Abandoned.