Gentleman Jim vs Jim Corbett

Gentleman Jim and Jim Corbett both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gentleman Jim	Yes	No	No	No
Jim Corbett	Yes	No	No	No

As nouns, Gentleman Jim and Jim Corbett are synonyms defined as:

Gentleman Jim and Jim Corbett: United States heavyweight boxing champion (1866-1933)

Other synonyms of Gentleman Jim include Corbett, James J. Corbett, James John Corbett.

Gentleman Jim (noun)	Jim Corbett (noun)
United States heavyweight boxing champion (1866-1933)	United States heavyweight boxing champion (1866-1933)