people are still arguing over what sort of person Jane Austen was - was she polite, was she sarcastic, was she gentle, was she ruthless? Without knowing that, it's hard to say whether a character has a similar personality
I've been reading Claire Tomalin's book on Jane Austen; in it she lays down vague interpretation on how Miss Austen used her novels to portray her own, as well as her sister Cassandra's character...as well as those she knew besides, including a one Tom Lefroy.