OCCUPATIONS :O

OCCUPIER	tradesman
OILMAN	sold the oil for lamps
OLITOR	kitchen gardener (from Olitory-a kitchen garden)
ORDERLY	soldier who functioned as a servant for an officer
ORDINARY KEEPER	innkeeper
ORRERY MAKER	made a mechanical apparatus for showing the movements of the planets (named after the Earl of Orrery the inventor)
ORRICE WEAVER	designer of lace patterns to be woven with silk thread and silk
OSIER PEELER	removed bark from willow rods or osiers which were used in basket weaving, usually women and children (also known as withy peelers)
OSTIARY	monastery door keeper
OUT CRIER	auctioneer
OUTWORKER	worker who carried on their occupation at home, e.g., cotton or woollen weavers but it applies to many occupations
OVERLOOKER	superintendent or overseer, especially in the textile mills
OVERMAN	supervisor in a colliery who checked the miners work and the quality of the mined coal
OWLER	sheep or wool smuggler
OYSTER DREDGER	member of the crew on board an oyster fishing boat