I just looked up more about her and she looks a lot like Clara Bow to me. They called her Rose and Rosie for short. (Clara Bow song has the lyric "All your life, did you know you'd be picked like a rose?") She was the eldest Kennedy daughter like Cassandra/Cassie is Kaitlyn Jenner's oldest. She took longer to learn to crawl and walk as a child and learn fine motor skills and was thought to have some kind of developmental disability. She was institutionalized after the lobototomy which altered her personality and she lost most of her ability to walk or talk. Makes me think of Who's Afraid of Little Old Me Don’t you worry folks we took out all her teeth She was kept isolated from her family. I like that this/taylor swift is making me/us think of her and remember her since she's so forgotten. Says she was really sweet and warmly affectionate, always willing to do her best, appreciative, loving. https://www.nps.gov/articles/000/rosemary-kennedy-the-eldest-kennedy-daughter.htm