8. A cowboy whose soul is strong and whose used to hardship is a man, who could live in a saddle.

Ans: A cowboy whose soul is strong and who's used to hardship is a man who could live in a saddle.

1) Whose should be spelled "who's" or "who is," which is really what is being said here.

2) No comma is needed after man because the relative clause "who could live in a saddle" is defining "man." Therefore, it is a restrictive clause.