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Education and career
Hickeringill was admitted to St John's College, Cambridge in 1647, graduated BA in 1650/1 and was junior fellow at Caius College, Cambridge in 1651–1652. During the First English Civil War he fought on the side of the Roundheads, serving in Robert Lilburne's regiment as a chaplain, as a soldier in Scotland and in the Swedish service, ultimately becoming a captain in Charles Fleetwood's regiment.
He then lived for a time in Jamaica, of which he published an account in 1661. In the same year he was ordained by Robert Sanderson, Bishop of Lincoln, having already changed his beliefs several times and been a Baptist, Quaker and Deist.
In 1682, Hickeringill published his History of Whiggism.
According to the 1911 edition of the Encyclopædia Britannica, Hickeringill was "an active pamphleteer, and came into collision with Henry Compton, Bishop of London, to whom he had to pay heavy damages for slander in 1682. He made a public recantation in 1684, was excluded from his living in 1685-1688, and ended his career by being convicted of forgery in 1707."
- "Hickhorngill, Edmund (HKNL647E)". A Cambridge Alumni Database. University of Cambridge.
- Edmund Hickeringill, The history of Whiggism: or, The Whiggish-plots, principles, and practices, (mining and countermining the Tory-plots and principles) in the reign of King Charles the first, during the conduct of affaires, under the influence of the three great minions and favourites, Buckingham, Laud, and Strafford; and the sad forre-runners and prologues to that fatal-year (to England and Ireland)41. Where in (as in a mirrour) is shown the face of the late (we do not say the present) times [In two parts] (London: Printed for E. Smith, at the Elephant and Castle in Cornhill, 1682)