Columbia subject headings:
New Sweden--History.
Swedes--Delaware River Valley (N.Y.-Del. and N.J.)
Harvard subject headings:
Delaware River Valley (N.Y.-Del. and N.J.)--History.
Delaware--History--Colonial period, ca. 1600-1775.
Delaware--History.
New Sweden--History.
Swedes--Delaware.
Princeton subject headings:
Delaware--History--Colonial period, ca. 1600-1775.
New Sweden--History.
Swedes--Delaware--History--17th century.