Mary Baker
From Tardis Wiki, the free Doctor Who reference
Mary Baker (1927-2009) was the paternal grandmother of Julia Hardwick. She was married to Fred Baker, with whom she had a son named Gordon, who was Julia's father.
Given the fact that Julia was sent back in time to 1887 by the Weeping Angels and adopted the pseudonym "Julia Baker," it is possible that Mary was not only Julia's grandmother but one of her descendants as well. However, given that Baker was seemingly her married name, her husband Fred may have been Julia's descendant. (WC: A Ghost Story for Christmas)
