Question: Who is the child of the person who was made Senate Majority Leader after the 1954 election?

full_context: Document 1: 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 2: Party leaders of the United States House of Representatives: When the White House is controlled by the House majority party, then the House minority leader assumes a larger role in formulating alternatives to executive branch initiatives and in acting as a national spokesperson for his or her party. "As Minority Leader during [President Lyndon Johnson's] Democratic administration, my responsibility has been to propose Republican alternatives," said Minority Leader Gerald Ford, R-MI. Greatly outnumbered in the House, Minority Leader Ford devised a political strategy that allowed Republicans to offer their alternatives in a manner that provided them political protection. As Ford explained:
Document 3: Dwight D. Eisenhower: President Truman, symbolizing a broad-based desire for an Eisenhower candidacy for president, again in 1951 pressed him to run for the office as a Democrat. It was at this time that Eisenhower voiced his disagreements with the Democratic party and declared himself and his family to be Republicans. A "Draft Eisenhower" movement in the Republican Party persuaded him to declare his candidacy in the 1952 presidential election to counter the candidacy of non-interventionist Senator Robert A. Taft. The effort was a long struggle; Eisenhower had to be convinced that political circumstances had created a genuine duty for him to offer himself as a candidate, and that there was a mandate from the populace for him to be their President. Henry Cabot Lodge, who served as his campaign manager, and others succeeded in convincing him, and in June 1952 he resigned his command at NATO to campaign full-time. Eisenhower defeated Taft for the nomination, having won critical delegate votes from Texas. Eisenhower's campaign was noted for the simple but effective slogan, "I Like Ike". It was essential to his success that Eisenhower express opposition to Roosevelt's policy at Yalta and against Truman's policies in Korea and China—matters in which he had once participated. In defeating Taft for the nomination, it became necessary for Eisenhower to appease the right wing Old Guard of the Republican Party; his selection of Richard M. Nixon as the Vice-President on the ticket was designed in part for that purpose. Nixon also provided a strong anti-communist presence as well as some youth to counter Ike's more advanced age.
Document 4: Dwight D. Eisenhower: The Democrats gained a majority in both houses in the 1954 election. Eisenhower had to work with the Democratic Majority Leader Lyndon B. Johnson (later U.S. president) in the Senate and Speaker Sam Rayburn in the House, both from Texas. Joe Martin, the Republican Speaker from 1947 to 1949 and again from 1953 to 1955, wrote that Eisenhower "never surrounded himself with assistants who could solve political problems with professional skill. There were exceptions, Leonard W. Hall, for example, who as chairman of the Republican National Committee tried to open the administration's eyes to the political facts of life, with occasional success. However, these exceptions were not enough to right the balance."
Document 5: Politics of Texas: From 1848 until Richard M. Nixon's victory in 1972, Texas voted for the Democratic candidate for president in every election except 1928, when it did not support Catholic Al Smith. The state had a white majority and Democrats re-established their dominance after the Civil War. In the mid-20th century 1952 and 1956 elections, the state voters joined the landslide for Dwight D. Eisenhower. (Texas did not vote in 1864 and 1868 due to the Civil War and Reconstruction).
Document 6: 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 7: Mary Harrison McKee: Mary Scott Harrison McKee (April 3, 1858 – October 28, 1930) was the only daughter of President Benjamin Harrison and his wife Caroline Scott Harrison. After her mother died in 1892, McKee served as her father's "de facto" First Lady for the remainder of his term.
Document 8: 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 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: On the domestic front, he covertly opposed Joseph McCarthy and contributed to the end of McCarthyism by openly invoking the modern expanded version of executive privilege. He otherwise left most political activity to his Vice President, Richard Nixon. He was a moderate conservative who continued New Deal agencies and expanded Social Security. He also launched the Interstate Highway System, the Defense Advanced Research Projects Agency (DARPA), the establishment of strong science education via the National Defense Education Act, and encouraged peaceful use of nuclear power via amendments to the Atomic Energy Act.
Document 11: 1954 in the United States: President: Dwight D. Eisenhower (R - Kansas / New York) Vice President: Richard Nixon (R - California) Chief Justice: Earl Warren (California) Speaker of the House of Representatives: Joseph William Martin, Jr. (R - Massachusetts) Senate Majority Leader: William F. Knowland (R - California) Congress: 83rd
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, 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 13: 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 14: 1946 United States House of Representatives elections: Truman was Vice President under President Franklin D. Roosevelt and was thrust into the presidency following Roosevelt's death. Truman did not garner the same support as the deceased president. Democrats had controlled Congress since 1931, for 16 years, and Roosevelt had been elected to a record four terms in office. The 1946 election resulted in Republicans picking up 55 seats to win majority control. Joseph William Martin, Jr., Republican of Massachusetts, became Speaker of the House, exchanging places with Sam Rayburn, Democrat of Texas, who became the new Minority Leader. The Democratic defeat was the largest since they were trounced in the 1928 pro-Republican wave that brought Herbert Hoover to power.
Document 15: 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.
ground_truth: Lynda Bird Johnson Robb
sub_queries: Who was made Senate Majority Leader after the 1954 election? Answer: Lyndon B. Johnson
Lyndon B. Johnson >> child Answer: Lynda Bird Johnson Robb