Hillhouse Avenue in New Haven, Connecticut is lined with stunning 19th- and 20th- century mansions showcasing the evolution of styles and architectural taste for the wealthiest residents. This is the Graves-Dwight House, a high-style Italianate mansion built around 1862. The residence was built for John Samuel Graves (1807-1892), a local businessman and politician who was a founder of the New Haven Gas Light Company. The architect is not known, but the house is the work of a skilled designer with immense attention to detail. The highly ornamented exterior features a symmetrical facade, bracketed cornice and window hoods, a recessed third-floor balconette with segmental arch pediment above, and bold, period-appropriate paint scheme. The residence was later owned by James McLaren Breed Dwight, a lawyer, and his wife, Cora Tallmadge Dwight. Since the 20th century, the property has been owned and preserved by Yale University, and is now home to the Archaeology Department.