Looking for Birth Parents - Born: Portland, OR - 07/23/1970

I was born at Woodland Park Hospital. I know their names were Christine Mosso and James Craig. Those are more common names than you would think and I cannot find amy matches or anything even close as they came from out of state to have me since they were both Catholic and unmarried prenant was unheard of in the Italian/Catholic culture then. Birthdate was July 23rd 1970. They were from Washington State and most likey under 18 at the time of my birth. Any help would be great and any idea's would be very appreciated.