mule driver vs mule skinner

mule driver and mule skinner both are nouns.

Word	Noun	Adjective	Verb	Adverb
mule driver	Yes	No	No	No
mule skinner	Yes	No	No	No

As nouns, mule driver and mule skinner are synonyms defined as:

Other synonyms of mule driver include muleteer, skinner.

mule driver (noun)	mule skinner (noun)
a worker who drives mules	a worker who drives mules