I've linked to this before. It's worth revisiting.

Hiroshima Archive

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Kengo Futagawa (59 at the time) was crossing the Kannon Bridge (1,600 meters from the hypocenter) by bicycle on his way to do fire prevention work. He jumped into the river, terribly burned. He returned home, but died on August 22, 1945.

  thanks to consumptive.org