working person vs working man

working person and working man both are nouns.

Word	Noun	Adjective	Verb	Adverb
working person	Yes	No	No	No
working man	Yes	No	No	No

As nouns, working person and working man are synonyms defined as:

working person and working man: an employee who performs manual or industrial labor

Other synonyms of working person include workingman, workman.

working person (noun)	working man (noun)
an employee who performs manual or industrial labor	an employee who performs manual or industrial labor