Columbia subject headings:
Harvard subject headings:
Businessmen--Ontario--Niagara Peninsula--Biography.
Hamilton, Robert, 1750-1809.
Niagara Peninsula (Ont.)--Biography.
Niagara Peninsula (Ont.)--Commerce.
Niagara Peninsula (Ont.)--Economic conditions.
Niagara Peninsula (Ont.)--History.
Ontario--Commerce.
Ontario--Economic conditions.
Princeton subject headings:
Businessmen--Ontario--Niagara Peninsula--Biography.
Hamilton, Robert, 1750-1809.
Niagara Peninsula (Ont.)--Biography.
Niagara Peninsula (Ont.)--Commerce.
Niagara Peninsula (Ont.)--Economic conditions.
Niagara Peninsula (Ont.)--History.
Ontario--Commerce.
Ontario--Economic conditions.