They're older so I think wides might fit. I wear a normal 7.5 (these were my great grandmothers) and they fit a little wide on me. But I think they're kinda like an in between of wide and not wide shoes.
Honestly, I have no idea. -If- she bought them when she was 30 they would be a little over 50 years old. She went paralyzed from the waist down when she was around that age and so I doubt she would have bought many shoes after that.