John Backwell was an English politician, the son of the financier Edward Backwell

Edward Backwell

Edward Backwell was an English goldsmith, financier, and politician. He has been called "the principal founder of the banking system in England", and "far and away the best documented banker of his time".-Life:...

.

In 1678, he married Elizabeth Tyringham, only daughter of Sir William Tyringham, by whom he had a son, Tyringham Blackwell. He inherited his father-in-law's estates in Buckinghamshire

Buckinghamshire

Buckinghamshire is a ceremonial and non-metropolitan home county in South East England. The county town is Aylesbury, the largest town in the ceremonial county is Milton Keynes and largest town in the non-metropolitan county is High Wycombe....

, and was twice returned for Member for Wendover

Wendover (UK Parliament constituency)

Wendover was a borough 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...

. With his father, he was appointed comptroller of customs in the port of London in 1671.