The Forgotten Garden by Kate Morton...?

Question

What did Linus mean 'she is of me' towards the end? Was it he who fathered Eliza with his beloved sister Georgiana?

This was the only thing that confused me and I'd love to know!

Thanks

Answer 1

I know the answer to the first question.  It means that she is his daughter.  

Answer 2

Linus clearly had incestuous feelings towards Georgiana, but I think he just meant that Ivory/Nell was a direct relation to him. She was his great-niece and last reminder of his sister.