Question: Who was the president of the country where Eckelson Township is located when Marii Hasegawa's birthplace was bombed?

full_context: Document 1: Mari Yoriko Sabusawa: Mari Yoriko Sabusawa (July 10, 1920 – September 25, 1994), second-generation Japanese American, was a translator and the third wife of novelist James A. Michener, whom she married on October 23, 1955, in Chicago, Illinois.
Document 2: Isami Doi: Doi was the first son of Japanese immigrants, born in Ewa on the island of Oahu in the Hawaiian Islands in 1903. He moved with his family to the island of Kauai, and he thereafter considered Kalaheo, Kauai his home.
Document 3: Atomic bombings of Hiroshima and Nagasaki: Hiroshima was the primary target of the first atomic bombing mission on August 6, with Kokura and Nagasaki as alternative targets. The 393d Bombardment Squadron B-29 Enola Gay, named after Tibbets' mother and piloted by Tibbets, took off from North Field, Tinian, about six hours' flight time from Japan. Enola Gay was accompanied by two other B-29s: The Great Artiste, commanded by Major Charles Sweeney, which carried instrumentation, and a then-nameless aircraft later called Necessary Evil, commanded by Captain George Marquardt, which served as the photography aircraft.
Document 4: Meadow Lake Township, Barnes County, North Dakota: Meadow Lake Township is a civil township in Barnes County, North Dakota, USA. As of the 2000 census, its population was 93. The township is located in Public Land Survey System Township 138N, Range 61W.
Document 5: Marii Hasegawa: Hasegawa was born in Hiroshima, Japan. Her family moved to the United States in 1919, after her father, a Buddhist priest, was assigned to serve Buddhists in California. She graduated from the University of California, Berkeley with a BA in home economics in 1938.
Document 6: Eckelson Township, Barnes County, North Dakota: Eckelson Township is a civil township in Barnes County, North Dakota, USA. As of the 2000 census, its population was 95.
Document 7: Valley Township, Barnes County, North Dakota: Valley Township is a civil township in Barnes County, North Dakota, USA. As of the 2000 census, its population was 565.
Document 8: Atomic bombings of Hiroshima and Nagasaki: The staff officer went to the airport and took off for the southwest. After flying for about three hours, while still nearly 160 km (100 mi) from Hiroshima, he and his pilot saw a great cloud of smoke from the bomb. After circling the city in order to survey the damage they landed south of the city, where the staff officer, after reporting to Tokyo, began to organize relief measures. Tokyo's first indication that the city had been destroyed by a new type of bomb came from President Truman's announcement of the strike, sixteen hours later.
Document 9: Little Boy: ``Little Boy ''was the codename for the atomic bomb dropped on the Japanese city of Hiroshima on 6 August 1945 during World War II by the Boeing B - 29 Superfortress Enola Gay, piloted by Colonel Paul W. Tibbets, Jr., commander of the 509th Composite Group of the United States Army Air Forces. It was the first atomic bomb to be used in warfare. The Hiroshima bombing was the second artificial nuclear explosion in history, after the Trinity test, and the first uranium - based detonation. It exploded with an energy of approximately 15 kilotons of TNT (63 TJ). The bomb caused significant destruction to the city of Hiroshima and its occupants.
Document 10: Atomic bombings of Hiroshima and Nagasaki: By August 1945, the Allies' Manhattan Project had produced two types of atomic bombs, and the 509th Composite Group of the United States Army Air Forces (USAAF) was equipped with the specialized Silverplate version of the Boeing B - 29 Superfortress that could deliver them from Tinian in the Mariana Islands. Orders for atomic bombs to be used on four Japanese cities were issued on July 25. On August 6, the U.S. dropped a uranium gun - type (Little Boy) bomb on Hiroshima, and American President Harry S. Truman called for Japan's surrender, warning it to ``expect a rain of ruin from the air, the like of which has never been seen on this earth. ''Three days later, on August 9, a plutonium implosion - type (Fat Man) bomb was dropped on Nagasaki. Within the first two to four months following the bombings, the acute effects of the atomic bombings had killed 90,000 -- 146,000 people in Hiroshima and 39,000 -- 80,000 in Nagasaki; roughly half of the deaths in each city occurred on the first day. During the following months, large numbers died from the effect of burns, radiation sickness, and other injuries, compounded by illness and malnutrition. In both cities, most of the dead were civilians, although Hiroshima had a sizable military garrison.
Document 11: Atomic bombings of Hiroshima and Nagasaki: By August 1945, the Allies' Manhattan Project had produced two types of atomic bomb, and the 509th Composite Group of the United States Army Air Forces (USAAF) was equipped with the specialized Silverplate version of the Boeing B - 29 Superfortress that could deliver them from Tinian in the Mariana Islands. Orders for atomic bombs to be used on four Japanese cities were issued on July 25. On August 6, one of its B - 29s dropped a Little Boy uranium gun - type bomb on Hiroshima. Three days later, on August 9, a Fat Man plutonium implosion - type bomb was dropped by another B - 29 on Nagasaki. The bombs immediately devastated their targets. Over the next two to four months, the acute effects of the atomic bombings killed 90,000 -- 146,000 people in Hiroshima and 39,000 -- 80,000 people in Nagasaki; roughly half of the deaths in each city occurred on the first day. Large numbers of people continued to die from the effects of burns, radiation sickness, and other injuries, compounded by illness and malnutrition, for many months afterward. In both cities, most of the dead were civilians, although Hiroshima had a sizable military garrison.
Document 12: Ivan Morris: Ivan Morris was born in London, of mixed American and Swedish parentage to Edita Morris and Ira Victor Morris (son of diplomat Ira Nelson Morris and grandson of meat-packer Nelson Morris). He studied at Gordonstoun, before graduating from Phillips Academy. He began his study of Japanese language and culture at Harvard University, where he received a BA. He received a doctorate at the School of Oriental and African Studies in London. He wrote widely on modern and ancient Japan and translated numerous classical and modern literary works. Ivan Morris was one of the first interpreters sent into Hiroshima after the explosion of the bomb.
Document 13: Uxbridge Township, Barnes County, North Dakota: Uxbridge Township is a civil township in Barnes County, North Dakota, United States. As of the 2000 census, its population was 111.
Document 14: Eckelson, North Dakota: Eckelson is an unincorporated community in Barnes County, North Dakota, United States. Eckelson is west of Sanborn and north of Interstate 94, which has an exit serving Eckelson.
Document 15: Kenji Ekuan: Born in Tokyo on September 11, 1929, Ekuan spent his youth in Hawaii. At the end of World War II, he moved to Hiroshima, where he witnessed the atomic bombing of the city, in which he lost his sister and his father, a Buddhist priest. He said the devastation motivated him to become a "creator of things".  Later he attended Tokyo National University of Fine Arts and Music (present-day Tokyo University of the Arts). In 1957, he founded GK Industrial Design Laboratory (ＧＫインダストリアルデザイン研究所). "GK" stood for "Group of Koike", as Koike was the name of an associate professor at the university.In 1970, he became president of the Japan Industrial Designers' Association and five years later he was elected as president of the International Council of Societies of Industrial Design.During his lifetime he served as chair of the Japan Institute of Design, dean of Shizuoka University of Art and Culture was and a trustee of the Art Center College of Design.Ekuan died in the hospital in Tokyo on February 8, 2015, at the age of 85.
ground_truth: President Truman
sub_queries: Eckelson Township >> country Answer: US
Marii Hasegawa >> place of birth Answer: Hiroshima
who was the US president when #2 was bombed Answer: President Truman