Robert E. Lee vs Robert Edwin Lee

Robert E. Lee and Robert Edwin Lee both are nouns.

Word	Noun	Adjective	Verb	Adverb
Robert E. Lee	Yes	No	No	No
Robert Edwin Lee	Yes	No	No	No

As nouns, Robert E. Lee and Robert Edwin Lee are synonyms defined as:

Robert E. Lee and Robert Edwin Lee: American general who led the Confederate Armies in the American Civil War (1807-1870)

Other synonyms of Robert E. Lee include Lee, Robert Edward Lee.

Robert E. Lee (noun)	Robert Edwin Lee (noun)
American general who led the Confederate Armies in the American Civil War (1807-1870)	American general who led the Confederate Armies in the American Civil War (1807-1870)