According to the LA Times: The pillbox hat — removed at Parkland Hospital while Mrs. Kennedy waited for doctors to confirm what she already knew [Kennedy's death] — is lost, last known to be in the hands of her personal secretary, who won’t discuss its whereabouts.
We think it’s whereabouts may well be on the black market. We’d buy it, probably. Unfortunately, we’d all wear it the next day, most likely be arrested. More