Slate's Timothy Noah welcomes Tony Snow to his Aptronym Yellow Pages, which lists people whose professions mirror their names.
It's not the first time I've read a reference to a White House snow job, but I think this aptronym's a stretch. (If he worked behind a plow or was a professional skier, OK.) Noah does list some better ones, including:
Joey Goodspeed, former running back
Harry Beaver, retired gynecologist
Les Plack, dentist
Cardinal Sin, appointed at Santa Maria ai Monti in 1976
My doctor once recommended a dermatologist by the name of John Cheek, which gave me a few chuckles.
You can find more aptronyms at Wikipedia.