Sylvia and Keith were actually never married. Her last name is Sanders. Middle name is Joy. She was born in 1947, as was Keith. He died in 2010. I don’t believe she was actually a doctor. I also don’t believe they lived in Canada at all. They were in australia, where both were born. They had one son together, Keith Mark Sims - born June 9, 1974 in Penrith, NSW. Keith had 3 more daughters with other wives. Sylvia had another son before Keith in approximately 1969. His name is Martin.