The real story
The Yamaki family has been shaping this Japanese white pine since 1625. On 6 August 1945 it stood in their nursery about 3 km from the hypocentre of the atomic bomb. A tall wall around the nursery shielded it; the blast blew in the windows and the family was cut by flying glass, but no one was seriously hurt and the trees survived.
In 1976 bonsai master Masaru Yamaki donated it as one of 53 bonsai Japan gave the United States for its Bicentennial, without saying a word about Hiroshima. Only on 8 March 2001, when his grandsons Shigeru and Akira turned up at the National Arboretum in Washington, did the staff learn what the tree had lived through. It still grows there, in the National Bonsai & Penjing Museum.