Walton vs Izaak Walton

Walton and Izaak Walton both are nouns.

Word	Noun	Adjective	Verb	Adverb
Walton	Yes	No	No	No
Izaak Walton	Yes	No	No	No

As nouns, Walton and Izaak Walton are synonyms defined as:

Walton and Izaak Walton: English writer remember for his treatise on fishing (1593-1683)

Walton (noun)	Izaak Walton (noun)
Irish physicist who (with Sir John Cockcroft in 1931) first split an atom (1903-1995)	English writer remember for his treatise on fishing (1593-1683)
English writer remember for his treatise on fishing (1593-1683)
English composer (1902-1983)