your name at birth was theresa cooper , when you were adopted you were old enough to know your first name so i dont think your adoptive parents changed your first name.i was told that your adoptive parents were from illinois and they were teachers of some sort. i also heard that your name maybe changed to theresa parker but not for sure. your adoptive parents did tell my adoptive parents that they would NEVER tell you the truth after that last day we seen each other, all i have is a picture of us...sure hope to find you ..