You forgot references to greenwoods, milk-white steeds and lily-white breasts, and angry fathers refusing to let their daughters consort with sailor/ploughboy/gypsy. Folk-song fathers tend to be very stern about these matters, and prone to swift and violent action when provoked, going so far as to exile or even burn their troublesome child. Very rarely do they come round to the daughter's point of view, unless Jack The Tarry Sailor of course returns home with "gold and silver plenty", in which case their view of matters changes quite dramatically.