This short story actually came out two months ago — I’m terrible at updating things.

As the Last I May Know, at Tor.com

The story is inspired by one of the poems I read in the Nagasaki museum, by Atsuyiko Matsuo, who lost his wife and three children in the destruction. It’s haunted me ever since, especially these lines:

After losing everything.
I stand holding
four atomic bomb death certificates.

I’ve never forgotten it.

The death toll within a kilometer of the Nagasaki hypocenter was 100%.