John Hart was a militia officer during King George's War

King George's War

King George's War is the name given to the operations in North America that formed part of the War of the Austrian Succession . It was the third of the four French and Indian Wars. It took place primarily in the British provinces of New York, Massachusetts Bay, New Hampshire, and Nova Scotia...

 and the French and Indian War

French and Indian War

The French and Indian War is the common American name for the war between Great Britain and France in North America from 1754 to 1763. In 1756, the war erupted into the world-wide conflict known as the Seven Years' War and thus came to be regarded as the North American theater of that war...

 from the Province of New Hampshire

Province of New Hampshire

The Province of New Hampshire is a name first given in 1629 to the territory between the Merrimack and Piscataqua rivers on the eastern coast of North America. It was formally organized as an English royal colony on October 7, 1691, during the period of English colonization...

.

John Hart was born in Dover, New Hampshire

Dover, New Hampshire

Dover is a city in Strafford County, New Hampshire, in the United States of America. The population was 29,987 at the 2010 census, the largest in the New Hampshire Seacoast region...

, to Mary Evans and Captain Samual Hart. He was married three times to Mary Dennett, Abigal Landale and Sara Savill. Hart served in the New Hampshire Militia

New Hampshire Militia

The New Hampshire Militia was first organized in March 1680, by New Hampshire Colonial President John Cutt. The King of England authorized the Provincial President to give commissions to persons who shall be best qualified for regulating and discipline of the militia. President Cutt placed Major...

 during the capture of Fortress Louisbourg from the French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 in 1745 by a force made up of militia from the New England

New England

New England is a region in the northeastern corner of the United States consisting of the six states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut...

 colonies supported by the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 and commanded by William Pepperrell

William Pepperrell

Sir William Pepperrell, 1st Baronet was a merchant and soldier in Colonial Massachusetts. He is widely remembered for organizing, financing, and leading the 1745 expedition that captured the French garrison at Fortress Louisbourg during King George's War...

.

During the French and Indian War John Hart was promoted to Colonel

Colonel

Colonel , abbreviated Col or COL, is a military rank of a senior commissioned officer. It or a corresponding rank exists in most armies and in many air forces; the naval equivalent rank is generally "Captain". It is also used in some police forces and other paramilitary rank structures...

 and commanded a battalion

Battalion

A battalion is a military unit of around 300–1,200 soldiers usually consisting of between two and seven companies and typically commanded by either a Lieutenant Colonel or a Colonel...

 of the New Hampshire Provincial Regiment

New Hampshire Provincial Regiment

The New Hampshire Provincial Regiment was a composite regiment made up of units of the New Hampshire Militia during the French and Indian War for service with the British Army in North America. It was first formed in 1754 with the start of hostilities with France.-1755:In 1755 Col...

 that was with General Jeffery Amhearst

Jeffrey Amherst, 1st Baron Amherst

Field Marshal Jeffery Amherst, 1st Baron Amherst KCB served as an officer in the British Army and as Commander-in-Chief of the Forces.Amherst is best known as one of the victors of the French and Indian War, when he conquered Louisbourg, Quebec City and...

 that again captured Fortress Louisbourg in 1758. Hart's Location, New Hampshire

Hart's Location, New Hampshire

Hart's Location is a town in Carroll County, New Hampshire, United States. Since 1948, the town has been one of the first places to declare its results for the New Hampshire Presidential primary and U.S. Presidential elections....

 is named for Colonel John Hart; this land was granted to him for his service during the French and Indian War.

Colonel Hart died aged 72, at his house in Portsmouth, New Hampshire

Portsmouth, New Hampshire

Portsmouth is a city in Rockingham County, New Hampshire in the United States. It is the largest city but only the fourth-largest community in the county, with a population of 21,233 at the 2010 census...

. In 1753 John Hart sold to the city of Portsmouth the land for the North Cemetery where William Whipple

William Whipple

William Whipple, Jr. was a signer of the United States Declaration of Independence as a representative of New Hampshire....

, John Langdon

John Langdon

John Langdon was a politician from Portsmouth, New Hampshire, and one of the first two United States senators from that state. Langdon was an early supporter of the Revolutionary War and later served in the Continental Congress...

and John Hart himself are all buried.