John F. Kennedy December 2, 1971
Woodrow Wilson December 2, 1971
Richard Nixon, Lyndon Johnson and Vietnam January 27, 1972
Richard Nixon February 24, 1972
Richard Nixon March 9, 1972
Richard Nixon and Mao Zedong March 23, 1972
Richard Nixon April 26, 1972
Richard Nixon May 18, 1972
Richard Nixon and Leonid Brezhnev June 15, 1972
Richard Nixon and Leonid Brezhnev June 29, 1972
Thomas Jefferson August 10, 1972
Dwight D. Eisenhower, John F. Kennedy, Lyndon Johnson, and Richard Nixon October 19, 1972
Richard Nixon November 2, 1972
Richard Nixon November 16, 1972
Richard Nixon and Nguyen Van Thieu November 30, 1972
Richard Nixon January 25, 1973
Lyndon Johnson January 25, 1973
