Dewey vs Melvil Dewey

Dewey and Melvil Dewey both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dewey	Yes	No	No	No
Melvil Dewey	Yes	No	No	No

As nouns, Dewey and Melvil Dewey are synonyms defined as:

Dewey and Melvil Dewey: United States librarian who founded the decimal system of classification (1851-1931)

Other synonyms of Dewey include Melville Louis Kossuth Dewey.

Dewey (noun)	Melvil Dewey (noun)
United States pragmatic philosopher who advocated progressive education (1859-1952)	United States librarian who founded the decimal system of classification (1851-1931)
a United States naval officer remembered for his victory at Manila Bay in the Spanish-American War
United States librarian who founded the decimal system of classification (1851-1931)