The Merchant's House Museum, known formerly as the Old Merchant's House and as the Seabury Tredwell House, is the only nineteenth-century family home in New York City preserved intact — both inside and out. Built "on speculation" in 1832 by Joseph Brewster, a hatter by trade, it is located at 29 East Fourth Street, between Lafayette Street and the Bowery in Manhattan. It became a museum in 1936, founded by George Chapman, a cousin of the family who once lived there.