Some of these names seem a bit corny, but I haven't any way of checking validity of most of them.Too bad they don't amuse as many people as I had hoped.

Cad__________________A person hired to feed and water horses at a coach stop
Caddy butcher_________A horsemeat butcher
Calciner______________Burned bones to make lime
Calender_____________A person who listed documents
Calker_______________An astrologer or magician
Cambist_____________A banker who dealt in notes or bills
Camerist____________A lady's maid
Canter_____________A beggar or vagrant
Canting caller_______An auctioneer
Carnifex___________An executioner or butcher