Answer
Sedgwick was also called "It Girl" and "Youthquaker". "It Girl" was a nickname given to a young woman who was popular and fashionable, and Sedgwick was known for her unique style and her popularity among young people. "Youthquaker" was a term used to describe the cultural change that was happening among young people in the 1960s, and Sedgwick was seen as a symbol of this change.