It s a dirty little secret the heirs to Alberta s populist legacy don t want Canadians to talk about. In 1928 the non-partisan United Farmers of Alberta passed the first Sexual Sterilization Act. The UFA s successor, the Social Credit part, led by a radio-evangelist William Aberhart, and later by his protZgZ Ernest Manning, removed the need to obtain consent to sterilize mental defectives or Huntington s Chorea patients with dementia.