Louis Auchincloss vs author

Louis Auchincloss and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
Louis Auchincloss	Yes	No	No	No
author	Yes	No	Yes	No

Louis Auchincloss (noun)	author (noun)
United States writer (born in 1917)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

Louis Auchincloss (verb)	author (verb)
	be the author of