The novel and trilogy trace the growth of the United States through the declining fortunes of three generations of the aristocratic Amberson family in an upper-scale Indianapolis neighborhood, between the end of the Civil War and the early part of the 20th century, a period of rapid industrialization and socio-economic change in America. The decline of the Ambersons is contrasted with the rising fortunes of industrial tycoons and other new-money families, who derived power not from family names but by "doing things".
