The Napierville Junction Railway was a Canadian subsidiary of the Delaware & Hudson that extended 29 miles from Rouses Point, NY, to a CP and CN connection at St. Constant, Quebec, outside Montreal. In the 1960s it owned just two locomotives, a pair of Canadian-built MLW RS-2s. Sporting D&H blue and gray, NJ 4051 rested at the Rouses Point yard on an April 1969 night.