
Tsutomu Yamaguchi Biography: Nationality, Ethnicity, Religion, Wikipedia, Age, Net Worth, Parents, Wife, Children
Tsutomu Yamaguchi was a Japanese marine engineer and a rare double survivor of the atomic bombings of Hiroshima and Nagasaki during World War II.
Employed by Mitsubishi Heavy Industries, he was in Hiroshima on a business trip when the first atomic bomb was dropped on August 6, 1945.
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He sustained severe injuries, including ruptured eardrums, temporary blindness, and radiation burns. Despite his condition, Yamaguchi returned to his hometown of Nagasaki, where he experienced the second bombing on August 9, 1945.
He survived this second attack as well, though he endured subsequent symptoms such as fever and vomiting. In 2009, the Japanese government officially recognized him as a hibakusha—a survivor of both nuclear bombings.

Profile
- Full Name: Tsutomu Yamaguchi
- Stage Name: Tsutomu Yamaguchi
- Born: 16 March 1916
- Died: 4 January 2010
- Age: 93 years old
- Birthplace: Japan
- Nationality: Japanese
- Occupation: Japanese marine engineer
- Height: Unknown
- Parent: Mr. and Mrs. Yamaguchi
- Siblings: Unknown
- Spouse: Hisako (died 2008)
- Children: Toshiko Yamazaki
- Relationship: Widow
- Net Worth: Unknown
Early Life And Education
Tsutomu Yamaguchi was born on March 16, 1916, in Nagasaki, Japan. While the names of his parents remain undocumented, they are generally referred to as Mr. and Mrs. Yamaguchi. Information about any siblings is also unknown.
Yamaguchi pursued studies in engineering, reportedly at Nagasaki University, where he built a strong foundation in marine engineering. He was of Japanese ethnicity, though his religious beliefs were not publicly disclosed.
Career
Tsutomu Yamaguchi was a marine engineer employed by Mitsubishi Heavy Industries, where he contributed to shipbuilding projects vital to Japan’s wartime efforts, particularly the design of oil tankers. By the early 1940s, he had established himself as a skilled professional, balancing his career with family life in Nagasaki amid the increasing pressures of World War II.
In the summer of 1945, he was sent on a business trip to Hiroshima, where, on August 6, he was injured by the first atomic bomb while preparing to return home. Despite ruptured eardrums, temporary blindness, and severe burns, he survived the blast and found shelter with colleagues before traveling back to Nagasaki.
Just three days later, on August 9, Yamaguchi reported for work in Nagasaki, only to experience the second atomic bombing. Once again, he was approximately three kilometers from ground zero. Though he was not physically injured in the second blast, the effects of his previous wounds intensified, and he suffered from fever and vomiting for several days.
His survival of both atomic bombings was a rare and extraordinary occurrence, and in 2009, he was officially recognized by the Japanese government as a double hibakusha—a survivor of both bombings.
Following the war, Yamaguchi worked as a translator for the Allied occupation forces and briefly taught school before resuming his engineering career. He lived in Nagasaki with his wife, who also survived the bombing, and together they raised their children.
In his later years, Yamaguchi became a vocal advocate for nuclear disarmament, using his harrowing personal experiences to campaign against the use of nuclear weapons and promote peace.
Social Media
Tsutomu Yamaguchi does not have social media accounts.
Personal Life
Tsutomu Yamaguchi was married to Hisako, who also survived the atomic bombing of Nagasaki. Born in 1920, Hisako passed away in 2008 at the age of 88, reportedly due to liver and kidney cancer, possibly linked to radiation exposure.
The couple had three children: a son, Katsutoshi (1946–2005), and two daughters, Toshiko and Naoko. Despite the profound impact of the bombings on their health and lives, the family remained in Nagasaki, where they raised their children.
Tsutomu Yamaguchi died of stomach cancer on January 4, 2010, at the age of 93. His life and legacy remain powerful symbols of survival, resilience, and advocacy for nuclear disarmament.
Net Worth
Tsutomu Yamaguchi’s net worth is not publicly documented, as he worked primarily as a marine engineer for Mitsubishi Heavy Industries and later held roles as a translator and school teacher in the post-war period.
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