Question: Who is the child of the 1958 Senate Majority Leader?

full_context: Document 1: Lynda Bird Johnson Robb: Lynda Bird Johnson Robb (born March 19, 1944) is an American chairwoman who served as chairwoman of the Board of Reading is Fundamental, the nation's largest children's literacy organization, as well as chairwoman of the President's Advisory Committee for Women. She is also a magazine editor who served as First Lady of Virginia from 1982 to 1986, before that as Second Lady of Virginia from 1978 to 1982. She is the elder of the two daughters of former United States President Lyndon Baines Johnson and former First Lady Lady Bird Johnson. She is the oldest living child of a U.S. President following the death of John Eisenhower on December 21, 2013.
Document 2: Space Race: The Space Race began on August 2, 1955, when the Soviet Union responded to the US announcement four days earlier of intent to launch artificial satellites for the International Geophysical Year, by declaring they would also launch a satellite ``in the near future ''. The Soviet Union beat the US to this, with the October 4, 1957, orbiting of Sputnik 1, and later beat the US to the first human in space, Yuri Gagarin, on April 12, 1961. The`` race'' peaked with the July 20, 1969, US landing of the first humans on the Moon with Apollo 11. The USSR tried but failed crewed lunar missions, and eventually canceled them and concentrated on Earth orbital space stations.
Document 3: Elizabeth Cutter Morrow: Elizabeth Cutter Morrow, born Elizabeth Reeve Cutter (May 29, 1873 – January 24, 1955) was an American poet in the early 20th century, and she became the first female head of Smith College, acting as college president from 1939 to 1940, but she was never officially granted the title. She was the wife of U.S. Senator Dwight Morrow and the mother of four children, which included Anne Morrow Lindbergh, distinguished American author and wife of aviation pioneer Charles Lindbergh.
Document 4: NASA: President Dwight D. Eisenhower established NASA in 1958 with a distinctly civilian (rather than military) orientation encouraging peaceful applications in space science. The National Aeronautics and Space Act was passed on July 29, 1958, disestablishing NASA's predecessor, the National Advisory Committee for Aeronautics (NACA). The new agency became operational on October 1, 1958.
Document 5: Space Race: In 1955, with both the United States and the Soviet Union building ballistic missiles that could be utilized to launch objects into space, the "starting line" was drawn for the Space Race. In separate announcements, just four days apart, both nations publicly announced that they would launch artificial Earth satellites by 1957 or 1958. On July 29, 1955, James C. Hagerty, president Dwight D. Eisenhower's press secretary, announced that the United States intended to launch "small Earth circling satellites" between July 1, 1957, and December 31, 1958, as part of their contribution to the International Geophysical Year (IGY). Four days later, at the Sixth Congress of International Astronautical Federation in Copenhagen, scientist Leonid I. Sedov spoke to international reporters at the Soviet embassy, and announced his country's intention to launch a satellite as well, in the "near future". On August 30, 1955, Korolev managed to get the Soviet Academy of Sciences to create a commission whose purpose was to beat the Americans into Earth orbit: this was the de facto start date for the Space Race. The Council of Ministers of the Soviet Union began a policy of treating development of its space program as a classified state secret.
Document 6: Lyndon B. Johnson: Lyndon Baines Johnson (/ ˈlɪndən ˈbeɪnz /; August 27, 1908 -- January 22, 1973), often referred to by his initials LBJ, was an American politician who served as the 36th President of the United States from 1963 to 1969, assuming the office after having served as the 37th Vice President of the United States from 1961 to 1963. A Democrat from Texas, he also served as a United States Representative and as the Majority Leader in the United States Senate. Johnson is one of only four people who have served in all four federal elected positions.
Document 7: Space Race: In 1955, with both the United States and the Soviet Union building ballistic missiles that could be utilized to launch objects into space, the ``starting line ''was drawn for the Space Race. In separate announcements four days apart, both nations publicly announced that they would launch artificial Earth satellites by 1957 or 1958. On July 29, 1955, James C. Hagerty, president Dwight D. Eisenhower's press secretary, announced that the United States intended to launch`` small Earth circling satellites'' between July 1, 1957, and December 31, 1958, as part of their contribution to the International Geophysical Year (IGY). Four days later, at the Sixth Congress of International Astronautical Federation in Copenhagen, scientist Leonid I. Sedov spoke to international reporters at the Soviet embassy, and announced his country's intention to launch a satellite as well, in the ``near future ''. On August 30, 1955, Korolev managed to get the Soviet Academy of Sciences to create a commission whose purpose was to beat the Americans into Earth orbit: this was the de facto start date for the Space Race. The Council of Ministers of the Soviet Union began a policy of treating development of its space program as a classified state secret.
Document 8: Space Race: On October 21, 1959, Eisenhower approved the transfer of the Army's remaining space-related activities to NASA. On July 1, 1960, the Redstone Arsenal became NASA's George C. Marshall Space Flight Center, with von Braun as its first director. Development of the Saturn rocket family, which when mature, would finally give the US parity with the Soviets in terms of lifting capability, was thus transferred to NASA.
Document 9: Lord & Taylor: Starting in June 2000, Jane Elfers served as Lord & Taylor's second female president. She was replaced in October 2008 by former Neiman Marcus executive, Brendan Hoffman. According to HBC executive chairman, Richard Baker, her contract had expired. A third female president, Bonnie Brooks, took over in 2011, and a fourth female president, Liz Rodbell, took over in 2013.
Document 10: Dwight D. Eisenhower: After the Soviet Union launched the world's first artificial satellite in 1957, Eisenhower authorized the establishment of NASA, which led to the space race. During the Suez Crisis of 1956, Eisenhower condemned the Israeli, British and French invasion of Egypt, and forced them to withdraw. He also condemned the Soviet invasion during the Hungarian Revolution of 1956 but took no action. In 1958, Eisenhower sent 15,000 U.S. troops to Lebanon to prevent the pro-Western government from falling to a Nasser-inspired revolution. Near the end of his term, his efforts to set up a summit meeting with the Soviets collapsed because of the U-2 incident. In his January 17, 1961 farewell address to the nation, Eisenhower expressed his concerns about the dangers of massive military spending, particularly deficit spending and government contracts to private military manufacturers, and coined the term "military–industrial complex".
Document 11: Loriene Roy: Loriene Roy is an American librarian from Texas. She was the first Native American president of the American Library Association when she was inaugurated in 2007.
Document 12: List of presidents of the United States by age: The oldest living U.S. president is George H.W. Bush, born June 12, 1924 (age 93 years, 346 days). On November 25, 2017, he also became the longest - lived president, surpassing the lifespan of Gerald Ford, who died at the age of 93 years, 165 days. The second oldest living president, Jimmy Carter, has the distinction of having the longest post-presidency in U.S. history, currently at 37 years, 124 days. He surpassed the previous record, held by Herbert Hoover (31 years, 230 days) on September 7, 2012. The youngest living president is Barack Obama, born August 4, 1961 (age 56 years, 293 days).
Document 13: Space Race: On September 20, 1963, in a speech before the United Nations General Assembly, President Kennedy proposed that the United States and the Soviet Union join forces in their efforts to reach the Moon. Soviet Premier Nikita Khrushchev initially rejected Kennedy's proposal.
Document 14: List of presidents of the United States by age: The oldest living U.S. president is George H.W. Bush, born June 12, 1924 (age 93 years, 261 days). On November 25, 2017, he also became the longest - lived president, surpassing the lifespan of Gerald Ford, who died at the age of 93 years, 165 days. The second oldest living president, Jimmy Carter, has the distinction of having the longest post-presidency in U.S. history, currently at 37 years, 39 days. He surpassed the previous record, held by Herbert Hoover (31 years, 230 days) on September 7, 2012. The youngest living president is Barack Obama, born August 4, 1961 (age 56 years, 208 days).
Document 15: Space Race: On April 2, 1958, President Eisenhower reacted to the Soviet space lead in launching the first satellite, by recommending to the US Congress that a civilian agency be established to direct nonmilitary space activities. Congress, led by Senate Majority Leader Lyndon B. Johnson, responded by passing the National Aeronautics and Space Act, which Eisenhower signed into law on July 29, 1958. This law turned the National Advisory Committee on Aeronautics into the National Aeronautics and Space Administration (NASA). It also created a Civilian-Military Liaison Committee, chaired by the President, responsible for coordinating the nation's civilian and military space programs.
ground_truth: Lynda Bird Johnson Robb
sub_queries: Who was the Senate's Majority Leader in 1958? Answer: Lyndon B. Johnson
Lyndon B. Johnson >> child Answer: Lynda Bird Johnson Robb