Leaf Peepers. One of the Wilmington & Western Railroad's last Autumn Leaf Specials of the fall season gets underway in Greenbank, Delaware on generally sunny and mild afternoon in early November. With #98, one of the few 4-4-0 "American" Locomotives still operating in the US on point, the train is passing the property of Greenbank Mills as it heads north, for its eventual destination of Hockessin, some 8.5 rail miles to the north.