Homer Thompson vs Homer A. Thompson

Homer Thompson and Homer A. Thompson both are nouns.

Word	Noun	Adjective	Verb	Adverb
Homer Thompson	Yes	No	No	No
Homer A. Thompson	Yes	No	No	No

As nouns, Homer Thompson and Homer A. Thompson are synonyms defined as:

Homer Thompson and Homer A. Thompson: United States classical archaeologist (born in Canada) noted for leading the excavation of the Athenian agora (1906-2000)

Other synonyms of Homer Thompson include Homer Armstrong Thompson, Thompson.

Homer Thompson (noun)	Homer A. Thompson (noun)
United States classical archaeologist (born in Canada) noted for leading the excavation of the Athenian agora (1906-2000)	United States classical archaeologist (born in Canada) noted for leading the excavation of the Athenian agora (1906-2000)