The Greek revival style house, constructed by Martin F. Hanley in 1855, is the oldest surviving structure in the City of Clayton. This style of house was common on southern farmsteads in the early 19th century.The house is a window into the past, holding many of the Hanley family’s original furniture and artifacts. The museum tells a story depicting the reality of rural life in St. Louis County during the antebellum and post-Civil War years.