Columbia subject headings:
Harvard subject headings:
Hudson River (N.Y. and N.J.)--Description and travel.
Hudson River (N.Y. and N.J.)--History--Congresses.
New York (N.Y.)--History--Congresses.
Princeton subject headings:
Hudson River (N.Y. and N.J.)--Description and travel--Congresses.
Hudson River (N.Y. and N.J.)--History--Congresses.
New York (N.Y.)--History--Congresses.