Lieutenant-Colonel John Pitt Kennedy (1796–1879) was a British military engineer, agricultural reformer and civil servant.

Kennedy was born at Carndonagh

Carndonagh

Carndonagh is a town on the Inishowen peninsula in County Donegal, Ireland and is home to the Irish Space Exploration Mission. The town is located near Malin Head, the most northerly point of Ireland and lies close to the shores of Trawbeaga Bay...

, County Donegal

County Donegal

County Donegal is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Donegal. Donegal County Council is the local authority for the county...

, Ireland

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 and was educated at Foyle College

Foyle and Londonderry College

Foyle College, which is also known by its former name Foyle and Londonderry College or FALC, is a co-educational voluntary grammar school in the city of Derry, Northern Ireland. In 1976, two local schools, Foyle College and Londonderry High School, merged under the Foyle and Londonderry College Act...

, Derry

Derry

Derry or Londonderry is the second-biggest city in Northern Ireland and the fourth-biggest city on the island of Ireland. The name Derry is an anglicisation of the Irish name Doire or Doire Cholmcille meaning "oak-wood of Colmcille"...

, and the Royal Military Academy, Woolwich, becoming lieutenant in the Royal Engineers

Royal Engineers

The Corps of Royal Engineers, usually just called the Royal Engineers , and commonly known as the Sappers, is one of the corps of the British Army....

 in 1815. Four years afterwards, he was sent to Malta

Malta

Malta , officially known as the Republic of Malta , is a Southern European country consisting of an archipelago situated in the centre of the Mediterranean, south of Sicily, east of Tunisia and north of Libya, with Gibraltar to the west and Alexandria to the east.Malta covers just over in...

, and thence to Corfu

Corfu

Corfu is a Greek island in the Ionian Sea. It is the second largest of the Ionian Islands, and, including its small satellite islands, forms the edge of the northwestern frontier of Greece. The island is part of the Corfu regional unit, and is administered as a single municipality. The...

. He superintended the construction of a canal at Lefkada

Lefkada

Lefkada, or Leucas or Leucadia , is a Greek island in the Ionian Sea on the west coast of Greece, connected to the mainland by a long causeway and floating bridge. The principal town of the island and seat of the municipality is Lefkada . It is situated on the northern part of the island,...

 (1820), served next under Sir Charles Napier

Charles James Napier

General Sir Charles James Napier, GCB , was a general of the British Empire and the British Army's Commander-in-Chief in India, notable for conquering the Sindh Province in what is now Pakistan.- His genealogy :...

 at Cephalonia

Kefalonia

The island of Cephalonia, also known as Kefalonia, Cephallenia, Cephallonia, Kefallinia, or Kefallonia , is the largest of the Ionian Islands in western Greece, with an area of . It is also a separate regional unit of the Ionian Islands region, and the only municipality of the regional unit...

 (building lighthouse

Lighthouse

A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....

s, road

Road

A road is a thoroughfare, route, or way on land between two places, which typically has been paved or otherwise improved to allow travel by some conveyance, including a horse, cart, or motor vehicle. Roads consist of one, or sometimes two, roadways each with one or more lanes and also any...

s, and quays) and was sub-inspector of militia in the Ionian Islands

Ionian Islands

The Ionian Islands are a group of islands in Greece. They are traditionally called the Heptanese, i.e...

 (1828–31).

He then returned to Ireland, where he set himself to the discovery of the ways and means for improving the lamentable condition of the agricultural classes. His methods of improving the condition of the agricultural classes are indicated by the title of his work, Instruct; Employ; Don't Hang Them: or Ireland Tranquilized without Soldiers and Enriched without English Capital

Capital (economics)

In economics, capital, capital goods, or real capital refers to already-produced durable goods used in production of goods or services. The capital goods are not significantly consumed, though they may depreciate in the production process...

(1835). He wrote several others of similar nature, and as inspector general

Inspector General

An Inspector General is an investigative official in a civil or military organization. The plural of the term is Inspectors General.-Bangladesh:...

 for Irish education (1837), as secretary to the Devon Commission

Devon Commission

The Devon Commission was a commission that was appointed by Sir Robert Peel to research the problems with land leases. It was formed by a queen's proclamation issued 20 November 1843 and reported 14 February 1845. This was a positive step for the government as it made the Irish believe that...

 (1843), and to the famine relief committee (1845), his labours were unceasing in behalf of his native land.

He returned to the army in 1849 as military secretary to Sir Charles Napier and accompanied him to India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. There he built the military road named after him and extending from Kalka

Kalka

Kalka is a town in the Panchkula district of Haryana, India. The name of the town is derived from the goddess Kali. The town is situated in the foothills of the Himalayas and is a gateway to the neighbouring state of Himachal Pradesh. It is on the National Highway 22 between Chandigarh and Shimla,...

 via Simla

Shimla

Shimla , formerly known as Simla, is the capital city of Himachal Pradesh. In 1864, Shimla was declared the summer capital of the British Raj in India. A popular tourist destination, Shimla is often referred to as the "Queen of Hills," a term coined by the British...

 to Kunawur and Tibet

Tibet

Tibet is a plateau region in Asia, north-east of the Himalayas. It is the traditional homeland of the Tibetan people as well as some other ethnic groups such as Monpas, Qiang, and Lhobas, and is now also inhabited by considerable numbers of Han and Hui people...

. He published British Home and Colonial Empire (1865–69), as well as a number of technical works relating to his Indian career.

He was buried in Highgate Cemetery

Highgate Cemetery

Highgate Cemetery is a cemetery located in north London, England. It is designated Grade I on the English Heritage Register of Parks and Gardens of Special Historic Interest in England. It is divided into two parts, named the East and West cemetery....

 in London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

.