In 1939, Ernest Hemingway left a large collection of his belongings—the manuscript of his earliest short story, childhood trinkets, memorabilia from his time at war, intimate letters, books, and more—in a storeroom behind Sloppy Joe’s, a bar he frequented in Key West that was owned by some friends of his. When Penn State University’s Toby and Betty Bruce Collection of Ernest Hemingway acquired the items in 2021, it represented the most significant trove of Hemingway memorabilia discovered in generations.