Verity Newman
Verity Newman was the great-grandaughter of Joan Redfern, a nurse that the Doctor had met in the year 1913. One day when she was searching out her attic, she found the diary, the one which had been written by The Doctor, when he was in the form of John Smith.
In 2010, the Doctor went to a book signing of hers. She asked who to sign it to. When he told her "the Doctor", she realised that it was the same man. She told the Doctor her great grandmother died happily. (DW: The End of Time)
Behind the Scenes
Verity Newman gets her name from Verity Lambert and Sydney Newman who were the first producers of Doctor Who. This was first explored in Human Nature and The Family of Blood, the episodes in which Joan Redfern appeared.