You can call oklahoma city adoption dept. and ask what county your relative was adopted in. Then wright a letter to the judge in that county asking him to open up the adoption files on her. That is what I did to find my adoptive relative. If the clerk has time to look for the information, she will. If she is to busy, you may have to go yourself to look for the files. Janice Vowell e-mail
dolliejanice@gmail.com