Fort at Number 4 The Fort at Number 4 was the northernmost British settlement along the Connecticut River in New Hampshire until after the French and Indian War . Now known as Charlestown , it was more than from the nearest other British settlement at Fort Dummer . Construction began in 1740 by brothers Stephen , Samuel and David Farnsworth . By 1743 , there were 10 families settled in a square of interconnected houses , enclosed in a stockade with a guard tower . King George ' s War . In 1744 , during King George ' s War , many of the area ' s outlying farms and buildings were burned by the French and their Indian allies . Some settlers , along with some Indian warriors , were killed in ambushes and small skirmishes . Other settlers were taken prisoner , to be ransomed back in Canada . The settler families would abandon the fort in the fall of 1746 , and it was then occupied by Capt . Phineas Stevens and 30 militia troops in the spring of 1747 . On April 7 , 11 days after Capt . Stevens and his men arrived , the fort was besieged by a large force combining French militia and Abenaki warriors ( said be 700 strong , although probably much less ) , under the command of Ensign Boucher de Niverville of the French Marines . The siege lasted 3 days , until the French and Indians decided to head back to Canada rather than risk a direct attack on the fort , thus preventing further raids on settlements to the south and east . French and Indian War . One Indian raid against the Fort in August 1754 , immediately prior to the French and Indian War , led to the capture of Susanna Willard Johnson and her family , who were eventually sold into slavery . Following Johnson ' s release several years later , she wrote a popular captivity narrative of her ordeal . During the last of the French and Indian Wars , many soldiers were stationed in the Fort at Number 4 to protect the frontier . They included Colonel Nathan Whiting ' s Regiment of Connecticut , and Colonel John Goffe ’ s New Hampshire Provincial Regiment . Returning from a raid on St . Francis , Quebec , Robert Rogers in 1759 sought help here for his hungry Rangers at Fort Wentworth far up the Connecticut River . Also at that time , General Jeffrey Amherst ordered a road to be built between the fort and another fort newly captured at Crown Point , located on the shores of Lake Champlain in New York . Consequently , Capt . John Stark and a company of Rangers , together with Col . Goffe ' s Regiment , built the Crown Point Military Road . It was long , with many blockhouse s along its route to protect supplies and travelers through the wilderness that would later become Vermont . With the defeat of the French in 1761 , and the Treaty of Paris in 1763 , the need for the fort ended . American Revolution . Although the fort no longer existed , General John Stark gathered the New Hampshire Militia regiments at its site while traveling to the Battle of Bennington in 1777 . Today . The Fort at Number 4 is now a living history museum , recreated to depict its appearance during King George ' s War . A group of historians and enthusiasts portray the settlers and town militia . During most summers , the fort hosts both French and Indian War and American Revolutionary War reenactments . The fort was closed for the 2009 season , was partly reopened in 2010 for selected events , and has reopened for a full summer season in 2011 .