Thanks Rory.
I am in contact with John Malcolm, who has given me considerable assistance over the past couple of years. I will pass on your comments on his book, with which I totally agree.
I still want to know how a 15-year old girl, born in Lower Canada, ended up (apparently alone) in the newly-conquered Cape of Good Hope in late 1796, where she married the egregious Major Shee as he passed through on his way to India!