Oxford English Dictionary includes dishonest tradesmen as well as disorderly women and scolds as people for whom the cucking-stool was used and cites its use in Vienna and that "The punishment of the ducking stool cannot be inflicted in Pennsylvania." which by implication suggests that it could be used in some other parts of the USA. http://oed.com/view/Entry/58195?redirectedFrom=ducking+stool accessed 27 Nov 2012.
