1878–1885. 210 St. John St.
Built as a fruit-canning and can-manufacturing plant operated by S. J. Seneca, the building harkens back to one of the town’s most important industries. Up until World War II, farmers brought their produce for canning to this plant located on the waterfront, with a railroad spur to facilitate shipping. During the Spanish-American War, the factory produced Red Cross-brand canned goods for the U.S. government. Erected in phases, the early section is built of stone with a high basement reinforced with buttresses; an upper story of brick was later added, as was a long brick section with loading docks with a commercial street-front business entrance in the gable end.