Since this is basically a history site, maybe a little more information will help. What is your real mother's name? Did she tell you her age or your real father's name? Or anyone else in your real family? Any background information will help. Would it be possible to talk to her to ask her these questions?
*Try to ask her about as many names and birth/death dates as possible. This might help you find some distant cousins or so that can help.
Best of luck, I hope you find them!