Complex sentence: The livery often had rented horses to Iowa City firemen to pull their flashy pumper and hose reel wagons, then being housed across Washington Street in the 1881 City Hall, which featured a tall ornamental clocked-belfry.
Split into simpler sentences: The livery often had rented horses to Iowa City firemen to pull their flashy pumper and hose reel fire wagons. Fire rigs were then being housed across Washington Street in the 1881 City Hall, which featured a tall ornamental clocked-belfry.