Henley was the eldest surviving son of Henry Henley of Leigh and his wife Susan Bragge, daughter of William Bragge of Sadborow, Thorncombe, Devon. He became a colonel in the Parliamentary army in around 1643 and was a commissioner for sequestrations, assessment and levying of money for Somerset in 1643. In 1644 he was assessment commissioner for Somerset and Dorset and in 1646 became J.P. for Somerset until 1654. He was commissioner for rebuilding at Beaminster in 1647 and was JP for Devon from 1647 to 1657. He became High Sheriff of Dorset in 1648.
In 1653, Henley was nominated Member of Parliament for Somerset in the Barebones Parliament. He was commissioner for execution of ordinances for Somerset and Dorset and commissioner for scandalous ministers for Somerset in 1654 and also was elected MP for Dorset for the First Protectorate Parliament. In 1659 he was elected MP for Lyme Regis in the Third Protectorate Parliament.
Henley was commissioner for assessment for Dorset from January 1660 to 1680 and a JP for Dorset from March to -July 1660. He was commissioner for militia for Dorset in March 1660. In April 1660 he was elected MP for Bridport for the Convention Parliament. In 1661 he was elected MP for Lyme Regis for the Cavalier Parliament where he sat until 1679. He was commissioner for assessment for Somerset from 1664 to 1680. He was commissioner for recusants for Dorset in 1675. In 1679 he became a freeman of Lyme Regis. He was elected MP for Lyme Regis in two parliament in 1679 and again in 1681. In 1688 he became a JP for Somerset in February, a commissioner for inquiry into recusancy fines for Somerset in March and a JP for Dorset in June.
Henley died at the age of 83 and was buried at Winsham on 10 June 1696.
Henley married firstly Susan Moggridge, daughter of Thomas Moggridge, merchant, of Exeter on 28 September 1636. They had two sons. He married secondly to Bridget Bampfield, daughter of John Bampfield of Poltimore, Devon and had two daughters.
|Parliament of England|
Not represented in Rump Parliament
|Member of Parliament for Somerset
With: General-at-sea Robert Blake
Sir John Horner
General John Desborough
|Member of Parliament for Dorset
With: William Sydenham
Sir Walter Earle
Sir Edmund Prideaux
|Member of Parliament for Lyme Regis
With: Sir Edmund Prideaux
Sir Edmund Prideaux