(First Trust Center) - 176 East Fifth Street - (enter on Fourth between Jackson and Sibley) - 1914-16, Charles S. Frost - James J. Hill crowned his extraordinary career with a plan to build one office building for his Great Northern and…

(Depot Place) - 214 East Fourth Street (between Sibley and Wacouta) - - 1917-23, Charles S. Frost - Riverboat traffic gave Saint Paul its start, but with the railroads, the city grew into a major freight transfer center. By the early 1880s,…