John Barker was an English merchant and 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...

  in 1659.

Barker was a city of London merchant and a member of the Worshipful Company of Grocers

Worshipful Company of Grocers

The Worshipful Company of Grocers is one of the 108 Livery Companies of the City of London. It is ranked second in the order of precedence of the Companies and, having been established in 1345, is one of the original Great Twelve City Livery Companies....

. On 13 September 1651 he was elected alderman for the City of London for Bread Street ward.

In 1659, Barker 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 Ilchester

Ilchester (UK Parliament constituency)

Ilchester was a constituency of the House of Commons of the Parliament of England then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1832. It was represented by two Members of Parliament until 1832...

 in the Third Protectorate Parliament

Third Protectorate Parliament

The Third Protectorate Parliament sat for one session, from 27 January 1659 until 22 April 1659, with Chaloner Chute and Thomas Bampfylde as the Speakers of the House of Commons...

.

Barker married a daughter of Thomas Westrow who was alderman and sheriff of London in 1625.