Mary Wilkes; John Wilkes by Johan Joseph Zoffany, 1782. John Wilkes (1725-1797), Politician and agitator. Mary Wilkes (1750-1802), Daughter of John Wilkes. John Wilkes, the radical politician, was arrested in 1763 under a general warrant against his anti-government newspaper The North Briton, for an attack on the king's speech on peace with France. MP for Middlesex 1774 and Lord Mayor. Mary Wilkes (or Polly, as she was known), was Wilkes's only child by his estranged wife, Mary Meade.