Louis Henri Sullivan vs Louis Sullivan

Louis Henri Sullivan and Louis Sullivan both are nouns.

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

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

Louis Henri 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 Henri Sullivan include Louis Henry Sullivan, Sullivan.

Louis Henri 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)