Columbia subject headings:
Harvard subject headings:
Delaware River (N.Y.-Del. and N.J.)--History--Colonial period, 1660-1775.
Delaware River (N.Y.-Del. and N.J.)--History--Colonial period, ca. 1600-1775.
Princeton subject headings:
Delaware River (N.Y.-Del. and N.J.)--History--Colonial period, 1660-1775.