When Isabella Fox was born about 1837, in Gosfield, Essex, Ontario, Canada, her father, John C. Fox, was 30 and her mother, Judith Ann or Julianna Wigle, was 25. She married James Thornton Sloan on 3 November 1862, in Essex, Ontario, Canada. They were the parents of at least 11 sons and 2 daughters. She died on 24 June 1903, in Gosfield, Essex, Ontario, Canada, at the age of 66, and was buried in Gosfield South Township, Essex, Ontario, Canada.