Clyde William Tombaugh vs Clyde Tombaugh

Clyde William Tombaugh and Clyde Tombaugh both are nouns.

Word	Noun	Adjective	Verb	Adverb
Clyde William Tombaugh	Yes	No	No	No
Clyde Tombaugh	Yes	No	No	No

As nouns, Clyde William Tombaugh and Clyde Tombaugh are synonyms defined as:

Clyde William Tombaugh and Clyde Tombaugh: United States astronomer who discovered the planet Pluto (1906-1997)

Other synonyms of Clyde William Tombaugh include Tombaugh.

Clyde William Tombaugh (noun)	Clyde Tombaugh (noun)
United States astronomer who discovered the planet Pluto (1906-1997)	United States astronomer who discovered the planet Pluto (1906-1997)