I believe that Sheila was different sports, but different Olympic Games - swimming first and later, triathlon.
Carol Montgomery, qualified for Canada in the Triathlon AND the 10,000m on the track in the SAME Olympic Games. I note that Canada's qualification times in events like the 10,000m are often harder than the IAAF standards, so it's by no means a walk.
Unfortunately, Carol was taken out of the Olympic Games triathlon in Sydney with a bike crash and broken wrist - that also took her out of the 10,000m on the track later in the games. We all know that Simon Whitfield won the Gold Medal in the men's triathlon at Sydney. However, it was Carol who was a legitimate favorite on the women's side going into that race, while Whitfield at best was a long-shot!
I last heard about Sheila when she was going for something truly unprecedented, qualifying for a third Olympic team, in a third sport, and third games - Modern Pentathlon, I believe it was for her
Steve Fleck @stevefleck | Blog