A 1952 letter written by Hemingway to Marlene Dietrich (or as he affectionately called her, the "Kraut") was put on auction on May 4, 2017. Here is an article from Public Radio Internation about the letter that features an interview with the General Editor of the Hemingway Letters Project, Dr. Sandra Spanier: https://www.pri.org/stories/2017-04-18/hemingways-love-letter-marlene-di...