John Metcalfe 'Blind Jack of Knaresborough' was blinded by smallpox when he was six, but he led a long and colourful life, as a musician, soldier, smuggler and card player, but he is best remembered as a clever self-taught road construction engineer, in the days of the new-fangled Turnpike Roads. Yes, you had to pay a toll every few miles to use any of the main roads in the UK! This milestone dates from around the 1770s, set on the Wakefield to Austerlands Turnpike road.