Chapter 1 of Jane Austen's 'Northanger Abbey' starts with:
No one who had ever seen Catherine Morland in her infancy would have supposed her born to be an heroine.
Any other place anyone can point me to that uses 'an' heroine?
EDIT: The question is not about use of aspirate that some answers have pointed out. I am looking for another book example (preferably non-Jane Austen) where the same usage (an heroine) was made.