Lyndon Baines Johnson (1908 - 1973) is sworn in as the 36th President of the United States of America on board the presdential aeroplane, after the assassination of President John F Kennedy. Mrs Johnson is behind him, left, and to his right is the grief stricken Jackie Kennedy (1929 - 1994). (Photo by Keystone/Getty Images)
CAM RAHN BAY, VIETNAM: U.S. President Lyndon B Johnson inspects a Marine at Cam Rahn Bay Air Force Base, October 26, 1966, during the Vietnam War. (Photo by Yoichi Okamoto/PhotoQuest/Getty Images)
US President Lyndon B. Johnson hands a pent to the Rev. Martin Luther King (2nd-R) after signing the historic Civil Rights Bill in the East Room of the White House, in Washington, D.C., 02 July 1964. AFP PHOTOI (Photo credit should read -/AFP/Getty Images)
American politician and Senator Lyndon B Johnson (1908 - 1973) poses with his family at an unspecified airfield before the Democratic National Convention where he would receive the party nomination for Vice President, Los Angeles, California, July 7, 1960. Pictured are, from left, wife Lady Bird (1912 - 2007), daughter Lynda Byrd, LBJ, and daughter Luci Baines. (Photo by PhotoQuest/Getty Images)
President Johnson scratches the belly of one of his two beagles (named Him and Her) on the White House lawn on April 12, 1964.
