Considered one of the finest surviving examples of domestic architecture from the period, the 1832 late-Federal and Greek Revival Merchant’s House is a designated landmark on the federal, state, and city level.

The Museum’s collection of over 3,000 items comprises the possessions of the Tredwells, the wealthy merchant-class family who lived in the House from 1835 to 1933. The collection includes furniture, decorative arts, clothing, photographs and books, household items, and personal items. Highlights include a suite of 12 mahogany side chairs attributed to renowned furniture maker Duncan Phyfe, a pair of matching six-globe gas chandeliers, and 40 dresses and numerous fashion accessories that belonged to the Tredwell women.