JKR: different middle name

[greatelderone]

No: HPFGUIDX 92393

I think it's more of a reference/tribute possibly to Jane Austen 
whose novels Rowling seems to be a fan of or to Jane Eyre which is 
similar to the novels.

However I think it's more interesting that Hermione and Harry have 
the same middle and first initials and of course when she was setting 
everything up Hermione had the exact same initials as Harry(HP). Very 
interesting imo though I'm somewhat curious why she made the last 
name changes for hermione and also neville.