MelissaData.com | People Summary
This puts her in Brooklyn, NY. The birth date is right.
http://www.intelius.com/search-summa...?ReportType=1&
This gives some different relatives for her, if it is her.
If you still have either your parents marriage license or if they were divorced, those papers, his date of birth should be on it. It would really help to have his date of birth. Also, he lived in NC in 1980. Where in NC?