The Canadian Pacific Railway became a majority shareholder in the Soo Line Railroad in 1890 .
The Canadian Pacific Railway outright purchased the company in 1990 ; the Calgary - based railway 's U.S. headquarters then took over the space for its 400 employees .
The Canadian Pacific Railway became a majority shareholder in the Soo Line Railroad in 1890 and outright purchased the company in 1990 ; the Calgary - based railway 's U.S. headquarters then took over the space for its 400 employees .