Signing of the Nuclear Test Ban Treaty, 10/07/1963. (center) President Kennedy. (first row) Senator John Pastore, Senator J.W. Fulbright, Senator George Aiken, Senator Everett Dirksen, Senator Leverett Saltonstall, Senator Thomas H. Kutchel, Vice President Johnson. (second row) unidentified man, Senator Mike Mansfield, John J. McCloy, unidentified man, W. Averell Harriman, Senator George Smathers, Secretary of State Dean Rusk, Senator Hubert Humphrey, William C. Foster, Senator Howard W. Cannon. White House, Treaty Room. (National Archives Identifier: 194230); Series: Robert Knudsen White House Photographs, 01/20/1961 - 12/19/1963; Collection JFK-WHP: White House Photographs, 12/19/1960 - 03/11/1964; John F. Kennedy Library (NLJFK); National Archives and Records Administration.