Sorry for the vagueness of this, I'm sort of looking for a starting point in tracing a long lost family member, or the best direction to go with my search.
Basically my grandmother gave birth to my father in 1944 when she was 16, but he was fostered out and he never had any contact with her. He's obviously now 75 and has always wondered what happened to her, why he was fostered, if she had any children in later life etc. etc. I suppose there's even a chance she could still be alive.
I've sent off for an Ancestry DNA kit and I'm also wondering if it makes a difference if my DNA or his DNA is used ? The main reason I'd use my own is that I could make any findings a surprise for him, and if nothing turns up he need never know I did it.
Many thanks for any advice.