Colonel Henry Knox forms an expedition to transport sixty tons of brass and iron weaponry from Fort Ticonderoga (where they had been left behind by the British) down the Hudson River, over the Berkshire hills, and across today’s Massachusetts to Dorchester Heights overlooking Boston. Some historians consider this to be one of the most stupendous logistical feats of the American Revolution. Author Mary Ames Mitchell, a former elementary school teacher and a descendant of Henry Knox, wrote and illustrated this story as a sing-along-ballad to appeal to her preschool grandchildren.