Can a person temporally operate a farm tractor on the highway with out a driver license?

Yes, you can as long as your over the age of 13 you are Legal to drive a tractor in city limits of on a highway

Added: AND . . . only so long as you are driving it from farm to field, field to farm, or field to field. You cannot drive the tractor on the road for any other purpose or as a means of personal transportation.