writer vs Harriet E. Wilson

writer and Harriet E. Wilson both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
Harriet E. Wilson	Yes	No	No	No

writer (noun)	Harriet E. Wilson (noun)
writes (books or stories or articles or the like) professionally (for pay)	author of the first novel by an African American that was published in the United States (1808-1870)
a person who is able to write and has written something