Andrew W. Mellon vs Andrew Mellon

Andrew W. Mellon and Andrew Mellon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Andrew W. Mellon	Yes	No	No	No
Andrew Mellon	Yes	No	No	No

As nouns, Andrew W. Mellon and Andrew Mellon are synonyms defined as:

Andrew W. Mellon and Andrew Mellon: United States financier and philanthropist (1855-1937)

Other synonyms of Andrew W. Mellon include Andrew William Mellon, Mellon.

Andrew W. Mellon (noun)	Andrew Mellon (noun)
United States financier and philanthropist (1855-1937)	United States financier and philanthropist (1855-1937)