Yoko Moriwaki, who was 13 at the time of the atomic bombing of Hiroshima in 1945, is known for the diary she kept until the day before the bombing. The diary is now a symbol of the weapon's cruelty.
Her brother, Koji Hosokawa, 90, an A-bomb survivor living in Hiroshima's Naka Ward, donated her uniform, air-raid hood, and distorted lunch box to the Peace Memorial Museum. Hosokawa had long kept these mementos of his sister at home. Given his advancing age, he decided to ensure they would be kept safe and secure at the museum in the years to come.
On Aug. 6, 1945, when the atomic bomb was dropped on Hiroshima, Moriwaki was a student at First Hiroshima Prefectural Girls' High School who was helping to dismantle buildings to create a firebreak in Dobashi (now part of Naka Ward), about 700 meters from the hypocenter.