became a major shareholder for the Soo Line in 1890. The MStP&SSM merged with numerous CP subsidiaries in 1961 to form the "new" Soo Line Railroad.

During the 1960s, a remodeling operation transformed the building into small offices. The marble floors were covered with carpet.

In 1985, the Soo purchased trackage from the bankrupt Chicago, Milwaukee, St. Paul & Pacific Railroad ("Milwaukee Road") and usurped