Columbia subject headings:
Harvard subject headings:
Boston (Mass.)--Civilization.
Elite (Social sciences)--Massachusetts--Boston.
Elite (Social sciences)--Pennsylvania--Philadelphia.
Philadelphia (Pa.)--Civilization.
Puritans--Massachusetts--Boston--History.
Quakers--Pennsylvania--Philadelphia--History.
Princeton subject headings:
Boston (Mass.)--Civilization.
Elite (Social sciences)--Massachusetts--Boston.
Elite (Social sciences)--Pennsylvania--Philadelphia.
Philadelphia (Pa.)--Civilization.
Puritans--Massachusetts--Boston--History.
Society of Friends--Pennsylvania--Philadelphia--History.