- The Darby family's historic homes - Rosehill House and Dale House - are collectively known as the Darby Houses. See family objects, papers, plans and pictures which dot the rooms and give you a very real sense of how the family lived, as well as worked. Don't miss out on dressing up in Quaker costume at Rosehill House. The Museum has restored and opened to the public the house constructed for Abraham Darby I in 1717 – Dale House. It was in this house that his grandson, Abraham Darby III, designed the Iron Bridge. Adjacent is Rosehill House, which was also occupied by members of the Darby family, and now houses the Museum’s collection of Darby furniture, prints, porcelain, silver and ephemera collected and donated by Lady Labouchere. The carefully reinstated early 19th century garden in front of both houses, and the family arboretum behind, place the buildings into an environmental context. The entire collection of this museum is a Designated Collection of national importance.