Henry Mainwaring Henry Mainwaring Sir Henry Mainwaring (1587–1653), was an English lawyer, soldier, author, seaman and politician who sat in the House of Commons from 1621 to 1622. He was for a time a pirate based in Newfoundland and then a naval officer with the Royal Navy. He supported the Royalist cause in the English Civil War. Mainwaring was born in Ightfield, Shropshire, second son of Sir George Mainwaring and his wife Ann, the daughter of Sir William More of Loseley Park in Surrey. His maternal grandfather was Sir William More, Vice-Admiral of Sussex. He graduated from Brasenose College at Oxford University,
Captain Mainwaring independently, although not always with the best of results. In "A Man of Action", Walmington is cut off when a bomb damages the railway and waterworks. Mainwaring imposes martial law and takes power from the Mayor. Under his law people need permits to take a bath and looters will be shot. He changes position when this power is taken from him by an official from GHQ, describing such an act and the imposition of martial law as "monstrous". Mainwaring often claims to know something, only to be proven wrong almost immediately. Men under him, however, are mostly devoted to him.