He was ordained to priesthood on 14 June 1612, and then returned to England to take up the post of a chaplain at Chideock Castle, Dorset.

On 8 March 1642, King Charles I, to placate the Puritan Parliament of England, issued a proclamation banishing all priests.

John Hungerford Pollen said that in prison his constancy so affected his fellow-captives that two or three women sentenced to die with him sent him word that they would ask his absolution before death.

His executioner was quite unskilled and could not find Green's heart; the butchery, with appalling cruelty, was prolonged for nearly half an hour.

[4] The Dorset Martyrs Memorial at Gallows Hill in Dorchester was created by Dame Elisabeth Frink and was erected in 1986.