"The Robert L. Capp collection at the Hoover Institution Archives contains ten never-before-published photographs illustrating the immediate aftermath of the Hiroshima bombing. These photographs, taken by an unknown Japanese photographer, were found in 1945 among rolls of undeveloped film in a cave outside Hiroshima by U.S. serviceman Robert L. Capp, who was attached to the occupation forces. Unlike most photos of the Hiroshima bombing, these dramatically convey the human as well as material destruction unleashed by the atomic bomb. Mr. Capp donated them to the Hoover Archives in 1998 with the provision that they not be reproduced until 2008." - source (where the ten photos can be found)