Columbia subject headings:
Architecture and society--United States.
Dwellings--United States--History--19th century.
Dwellings--United States--History--20th century.
Harvard subject headings:
Architecture and society--United States
Dwellings--United States--History--19th century.
Dwellings--United States--History--20th century.
Princeton subject headings:
Architecture and society--United States.
Dwellings--United States--History--19th century.
Dwellings--United States--History--20th century.