Louis Henry Sullivan vs Louis Sullivan

Louis Henry Sullivan and Louis Sullivan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Louis Henry Sullivan	Yes	No	No	No
Louis Sullivan	Yes	No	No	No

As nouns, Louis Henry Sullivan and Louis Sullivan are synonyms defined as:

Louis Henry Sullivan and Louis Sullivan: United States architect known for his steel framed skyscrapers and for coining the phrase `form follows function' (1856-1924)

Other synonyms of Louis Henry Sullivan include Louis Henri Sullivan, Sullivan.

Louis Henry Sullivan (noun)	Louis Sullivan (noun)
United States architect known for his steel framed skyscrapers and for coining the phrase `form follows function' (1856-1924)	United States architect known for his steel framed skyscrapers and for coining the phrase `form follows function' (1856-1924)