Where is the head office of the company that Archibald McDonald was Chief Trader for?
Archibald McDonald: Archibald McDonald (3 February 1790 – 15 January 1853) was Chief Trader for the Hudson's Bay Company at Fort Langley, Fort Nisqually and Fort Colvile and one-time deputy governor of the Red River Colony. Hudson's Bay Company:  HBC's head office is in the Simpson Tower in Toronto, Ontario.
Toronto, Ontario