Secrets of the family tree

We all carry inside us people who came before, wrote American author Liam Callanan. And in every new family line, glimpses of the older can be seen. A grandfather’s lopsided smile reappears in a grandson. Three generations of women have the same violet-flecked eyes. For historian Rose Overberg, it’s chestnut-coloured hair and distinctive height that she shares with her mother. “A lot of people say I look like Mum,” she says.

But while Rose has freckles and brown eyes, her mother has olive-toned skin and green eyes, and there are other features that can’t be accounted for. “Nobody in my family has my eyebrows,” she says.

For most of her life, Rose didn’t know who gave her those attributes, and she never thought much of it until she tried to find out and was blocked at every turn. Rose was conceived with the help of donor sperm in 1975, when the now-thriving fertility business was just a cottage industry without regulation or proper record keeping. Years later, when she tried to find out about her donor, she was shocked to learn that all evidence of her conception had disappeared.

And Rose was not alone. By the time the Victorian government made record-keeping mandatory in 1988, thousands of donor-conceived babies had been born. Many have files, but a significant number have not.

Rose describes herself as “pretty stubborn and self-righteous”, and she became determined to get to the bottom of this. “You’re creating a person and there are no medical records. How is that