Could it be, Judy, that Margaret Goodall had been certified insane when she was about 38? People in Britain were using "certified" as a synonym for "mad" quite a while ago, and the requirement that a person should not without a doctor's certificate be classified as insane dates back to the 18th century. In which year did she die? There was a big rise in the number of people certified insane during the course of the 19th century. Best wishes,