Let's hear it please - I love a good wikipedia rabbit hole. I'll start - The Willard Suitcases. Over 400 suitcases of possessions were found in an attic at the Willard Insane Asylum belong to patients who had died whilst inpatients so never left. The New York State Museum started a project to document the cases and their contents, and you can learn all about it and see the cases on their website.