No-one has probably ever heard of her - but I was excited when I found it!
A will of an ancestor mentioned her daughter, 'Ellen Edmonds, but known as Nellie Elizabeth Hepburn in her profession as painters of miniatures'
I went to the library and ordered a book on painters of miniatures - and sure enough Nellie Elizabeth Hepburn was mentioned, and also the fact that she had a miniature painting in the V & A museum!!! I wrote to them, they were very helpful, though the picture was being moved into storage for some time during refurbishment work.
It made a nice change for a never ending line of Ag Labs! (that branch of the family actually managed to move up in world!)
But a lesson to all rootschatters - don't leave a stone unturned, you never know when you may find something interesting.