Probably her daughter who lives in Australia would know the answer.

Unless it is actually mentioned in one of the books about Sandy, I don't know who would know for sure accept maybe someone in Sandy's family.
Or a close friend might know.
Or if you ever happened to have stood next to Sandy and were the same height.

Don't know if you would hear from any family member though or the chance that someone stood next to her (and the same height) would read this and reply. Probably not or odds are not great to hear from any family member or friend who knew her well.