• Born date: 1861-11-09
  • Born in: Canada East
  • Death date: 1924-07-07
  • Death in: Uxbridge, Ontario
Hartley Dewart

Herbert Hartley Dewart (9 November 1861 – 7 July 1924) was an Ontario lawyer and politician.He was born in St. Johns, Canada East. The son of Edward Hartley Dewart, a Methodist minister who was a staunch advocate of prohibition, the younger Dewart inherited his Liberal politics but broke with his father on the temperance issue becoming a firm opponent of prohibition, a move that would cost him dearly later in life.