The man pictured was Tsutomu Yamaguchi, and is the only person to have been officially recognized by the Japanese government for surviving both the Hiroshima and Nagasaki explosions.
Here’s his interesting story.
On August 6, 1945, Yamaguchi, was visiting Hiroshima for a business trip where he survived the first bomb that exploded on 8:15 am. Despite being injured, he managed to take the morning train back home, to Nagasaki. Two days later, he went to the office (!) where he was discussing with his supervisor that a bomb destroyed the whole city of Hiroshima. The moment his supervisor was telling him that he was crazy (you have to understand that there was no internet at the time), that very moment the Nagasaki bomb was detonated. (the article continues after the ad)
But Tsutomu Yamaguchi survived the second explosion as well!
In 1957, he was recognized as an “explosion-affected person” of the Nagasaki bombing and in 2009, the government of Japan officially recognized his presence in Hiroshima three days earlier, thus declaring him the only person who survived both the atomic explosions. He died in 2010, 93 years old.