Wild Bill Hickock vs James Butler Hickock

Wild Bill Hickock and James Butler Hickock both are nouns.

Word	Noun	Adjective	Verb	Adverb
Wild Bill Hickock	Yes	No	No	No
James Butler Hickock	Yes	No	No	No

As nouns, Wild Bill Hickock and James Butler Hickock are synonyms defined as:

Wild Bill Hickock and James Butler Hickock: frontier marshal whose adventures have become legendary (1837-1876)

Other synonyms of Wild Bill Hickock include Hickock, Wild Bill Hickok.

Wild Bill Hickock (noun)	James Butler Hickock (noun)
frontier marshal whose adventures have become legendary (1837-1876)	frontier marshal whose adventures have become legendary (1837-1876)