The photographer Levi Bettweiser worked on the “Rescued Film Project”, an initiative to find and rescue old and undeveloped photos from all over the world.
Recently, Bettweiser came across on his biggest find: 31 undeveloped rolls of film, shot by a single soldier during World War II. He found these film rolls in late 2014 at an auction in Ohio. Half of the rolls were labeled with various location names (i.e. Boston Harbor, Lucky Strike Beach, LaHavre Harbor).
Source: Petapixel