In this chapter:
(1) "Employer" means a person with whom a worker contracts, directly or through an agent, receiver, or trustee of the person, for the performance of labor or a service by the worker. The contract may be oral or in writing.
(2) "Worker" means a clerk, accountant, bookkeeper, waiter, waitress, cook, maid, porter, servant, employee, artisan, craftsman, factory operator, mill operator, mechanic, quarry worker, common laborer, or farmhand.