Since she is now an adult, and her previous passport was issued when she was <16, she has to take the oath herself and essentially apply for a new passport using form DS 11 which requires "proof of citizenship". But I'm going to have her track down everything she can with her name on it and take her to the courthouse Monday, and I'll just have her get a copy of her birth certificate. She needs one anyway. She was born in Texas. I'm feeling the cost of our flights increase by the minute. And I suddenly feel like I have a second child.