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On September 20, 1971, President Richard M. Nixon, Ronald G. S. Au, Andre LeTendre, George T. Bell, and White House photographer met in the Oval Office of the White House at an unknown time between 12:25 pm and 12:44 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-001 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and Stephen B. Bull met in the Oval Office of the White House from 12:44 pm to 12:45 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-002 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon, John N. Mitchell, Arthur F. Burns, and Manolo Sanchez met in the Oval Office of the White House from 12:45 pm to 1:30 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-003 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and Alexander P. Butterfield met in the Oval Office of the White House at an unknown time between 1:30 pm and 1:40 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-005 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and Henry A. Kissinger met in the Oval Office of the White House at an unknown time between 1:30 pm and 1:40 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-006 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and the White House operator met in the Oval Office of the White House at an unknown time between 1:30 pm and 1:40 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-007 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon, H. R. ("Bob") Haldeman, William E. Walk, Jr., and Henry A. Kissinger met in the Oval Office of the White House at an unknown time between 1:40 pm and 2:59 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-008 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and Ronald L. Ziegler met in the Oval Office of the White House from 3:00 pm to 3:01 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-009 of the White House Tapes.

On September 20, 1971, United States Secret Service agents and unknown person(s) met in the Oval Office of the White House at an unknown time between 3:01 pm and 4:41 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-010 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and H. R. ("Bob") Haldeman met in the Oval Office of the White House from 4:41 pm to 5:04 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-012 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and Alexander P. Butterfield met in the Oval Office of the White House at an unknown time between 5:04 pm and 5:12 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-013 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and Henry A. Kissinger met in the Oval Office of the White House at an unknown time between 5:04 pm and 5:12 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-014 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon and the White House operator met in the Oval Office of the White House at an unknown time between 5:04 pm and 5:12 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-015 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon, Charles W. Colson, and Henry A. Kissinger met in the Oval Office of the White House from 5:04 pm to 5:12 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-016 of the White House Tapes.

On September 20, 1971, President Richard M. Nixon, H. R. ("Bob") Haldeman, unknown person(s), and Ronald L. Ziegler met in the Oval Office of the White House from 5:34 pm to 6:19 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-017 of the White House Tapes.

On September 20, 1971, United States Secret Service agents met in the Oval Office of the White House at 6:19 pm. The Oval Office taping system captured this recording, which is known as Conversation 577-018 of the White House Tapes.