Holden Caulfield is a 16-year-old boy reflecting on his past. He is interested in judging how innocent or "phony" people are. Some key people in Holden's thoughts are his sister Phoebe, his deceased brother Allie, Jane Gallagher who he admired for her innocence, and his brother D.B. who he sees as phony. Holden also frequently thinks about his red hat, Allie's baseball glove, ducks in Central Park, and the Museum of Natural History. The most important symbol is the song "Catcher in the Rye," as Holden wants to protect children's innocence by catching them before they fall from it.