She was born Mary Vectis Jackson. Vectis is the Roman name for the Isle of Wight- where she grew up. There's a family story- religiously passed down- about some Jackson relative who once shared the deck of the Isle of Wight ferry with no less a person than Alfred Lord Tennyson but was too timid to approach him.
She trained as a woodcarver- I have examples of her work- married late and was widowed early. She was a lovely person- artistic, strong-willed and- from a small boy's perspective- lots of fun.