...mbridge Common, ready to oppose the forces of the king. The Powder House was used for storing powder until the erection of a new magazine at Cambridgeport. In 1836 it came into the possession of Nathan Tufts , in whose family it remained until May 28, 1892, at which time it was presented to the city, together with one and one-half acres of surrounding land, to which three acres more were added by purchase...