Columbia subject headings:
Harvard subject headings:
Ottawa River (Québec and Ont.)--History.
Saint Lawrence River--History.
Steam-navigation--Ottawa River (Québec and Ont.)--History.
Steam-navigation--Saint Lawrence River--History.
Princeton subject headings:
Ottawa River (Québec and Ont.)--History.
Saint Lawrence River--History.
Steam-navigation--Ottawa River (Québec and Ont.)--History.
Steam-navigation--Saint Lawrence River--History.