Columbia subject headings:
Travelers' writings, American--History and criticism--Congresses.
Travelers' writings, Canadian--History and criticism--Congresses.
Harvard subject headings:
Travelers' writings, American--History and criticism--Congresses.
Travelers' writings, Canadian--History and criticism--Congresses.
Princeton subject headings:
Travelers' writings, American--History and criticism--Congresses.
Travelers' writings, Canadian--History and criticism--Congresses.