John Trenchard was an English politician who sat in the House of Commons

House of Commons of England

The House of Commons of England was the lower house of the Parliament of England from its development in the 14th century to the union of England and Scotland in 1707, when it was replaced by the House of Commons of Great Britain...

 at various times between 1621 and 1659.

Trenchard was born in Charminster, Wareham, the son of Sir George Trenchard of Warmwell and his wife Ann Speke daughter of SIr George Speke of Whitelackington.

In 1621, Trenchard was elected Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Wareham

Wareham (UK Parliament constituency)

Wareham was a parliamentary borough in Dorset, which elected two Members of Parliament to the House of Commons from 1302 until 1832, and then one member from 1832 until 1885, when the borough was abolished.-History:...

. He was re-elected MP for Wareham in 1624 and 1625.

In April 1640, Trenchard was re-elected MP for Wareham in the Short Parliament

Short Parliament

The Short Parliament was a Parliament of England that sat from 13 April to 5 May 1640 during the reign of King Charles I of England, so called because it lasted only three weeks....

. He was elected again MP for Wareham for the Long Parliament

Long Parliament

The Long Parliament was made on 3 November 1640, following the Bishops' Wars. It received its name from the fact that through an Act of Parliament, it could only be dissolved with the agreement of the members, and those members did not agree to its dissolution until after the English Civil War and...

 in November 1640, and sat until 1653. He was elected MP for Dorset

Dorset (UK Parliament constituency)

Dorset was a county constituency covering Dorset in southern England, which elected two Members of Parliament , traditionally known as knights of the shire, to the House of Commons of England from 1290 until 1707, to the House of Commons of Great Britain from 1707 to 1800, and to the House of...

 in the First Protectorate Parliament

First Protectorate Parliament

The First Protectorate Parliament was summoned by the Lord Protector Oliver Cromwell under the terms of the Instrument of Government. It sat for one term from 3 September 1654 until 22 January 1655 with William Lenthall as the Speaker of the House....

 of 1653 and the Second Protectorate Parliament

Second Protectorate Parliament

The Second Protectorate Parliament in England sat for two sessions from 17 September 1656 until 4 February 1658, with Thomas Widdrington as the Speaker of the House of Commons...

 in 1656. He sat again for Wareham in 1659 in the Restored Rump parliament.

Trenchard died at Warmwell, Wareham.

Trenchard married Jane Rodney, daughter of Sir John Rodney of Stoke Somerset. His daughter Jane, married John Sadler Master of Magdalene College, Cambridge and his daughter Grace married William Sydenham.