Morning bfr89x
There is something VERY strange about Thomasina Edmond, so strangethat she doesn't seem to exist in Scotland ??

I put a search for her using the wild card, Thomasin* Edmon* on the first page of Scotlands People.
This should bring up all spelling variants for all records on the site. You can do this without using any credits.
None of the small amount of results fit in with what you were told.
There is a Thomasina Edmond'stone' but she is not in the right area in any record or dying at the said time.
My thoughts on this very intriguing matter are
1. The info you were told is mistakenly wrong.
2. She was born, brought up and died outwith Scotland but for some unknown reason is buried in your family plot ??
Can't wait for the next instalment

OFG