Mitsuo Baba is still grateful to an American who dedicated himself to building homes for A-bomb survivors in Nagasaki, one of two cities destroyed by the terrifying weapons in World War II.

"I met Schmoe-san only a couple of times as a kid and almost never talked with him, but all the residents, including myself, wanted to repay him for his kindness someday," Baba, 73, said.

Floyd Schmoe, a Quaker, peace activist and professor of forestry who died in 2001 at the age of 105, led a project to build homes in the wake of the U.S. atomic bombings of Hiroshima and Nagasaki.