From the caption I'd have to guess that it was your mother despite her not looking old enough to be your mother when I first saw the photo before reading the caption. Generally raising a child to adulthood takes a fair bit out of a woman, even women who were young when they gave birth. The more troublesome a child is the more there's stress about, and stress does an some effect upon aging.
Nifty. I wish you luck with that. Any of them young enough to try transplanting?