Columbia subject headings:
Harvard subject headings:
Canada--History--1867-1914--Pictorial works.
Canada--History--1914-1945--Pictorial works.
Canada--Pictorial works.
Princeton subject headings:
Canada--Description and travel.
Canada--History--1867-1914--Pictorial works.
Canada--History--1914-1945--Pictorial works.
Canada--Pictorial works.