Trip to Texas: Swearing-in ceremony aboard Air Force One, Lyndon B. Johnson (LBJ) as President. Officials gather inside Air Force One for the swearing-in of President Lyndon B. Johnson at Love Field in Dallas, Texas, following the assassination of President John F. Kennedy. Left to right: Special Assistant to President Kennedy, Kenneth P. O'Donnell; Military Aide to President Kennedy, General Chester V. Clifton; President Johnson; President Kennedy's personal secretary, Evelyn Lincoln (mostly hidden); Representative Homer Thornberry (Texas); Representative Jack Brooks (Texas); White House Secret Service agent, Thomas Lem Johns; former first lady Jacqueline Kennedy's Press Secretary, Pamela Turnure.