David C. Hoopes began his service in the Nixon administration in April 1971 as a staff assistant to the President. In this capacity, which he held throughout the White House taping period, he was responsible for managing briefing papers and follow-up memoranda for President Nixon's meetings. He worked on special projects for the Staff Secretary and, along with Alexander P. Butterfield, was responsible for ensuring that meetings attended by the President were documented. In June 1974, he officially became Special Assistant to the President.
On September 17, 1971, President Richard M. Nixon, David C. Hoopes, Lorenzo N. Hoopes, White House photographer, and H. R. ("Bob") Haldeman met in the Oval Office of the White House from 1:13 pm to 1:15 pm. The Oval Office taping system captured this recording, which is known as Conversation 575-001 of the White House Tapes.
On April 10, 1972, President Richard M. Nixon, Robert W. Barker, Arch N. Booth, William N. Burch, George Champion, Jr., Mary Pillsbury Lord, James P. Low, Leonard H. Marks, Herbert E. Marks, J. Willard Marriott, Alice (Sheets) Marriott, William J. McManus, Charles S. O???Malley, Jr., A. Pollard Simons, Katherine (Merrill) Swim, Walter E. Washington, C. Robert Yeager, John P. Cosgrove, John B. Kelly, Jr., David C. Hoopes, and White House photographer met in the Oval Office of the White House from 12:25 pm to 12:38 pm. The Oval Office taping system captured this recording, which is known as Conversation 705-011 of the White House Tapes.
On May 16, 1972, President Richard M. Nixon, Clark MacGregor, David C. Hoopes, and Stephen B. Bull met in the Oval Office of the White House at an unknown time between 4:58 pm and 5:05 pm. The Oval Office taping system captured this recording, which is known as Conversation 725-035 of the White House Tapes.
On June 6, 1972, President Richard M. Nixon and David C. Hoopes met in the President's office in the Old Executive Office Building from 9:20 am to 9:21 am. The Old Executive Office Building taping system captured this recording, which is known as Conversation 340-007 of the White House Tapes.
On June 29, 1972, President Richard M. Nixon and David C. Hoopes met in the President's office in the Old Executive Office Building from 6:54 pm to 6:55 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 345-020 of the White House Tapes.
On June 30, 1972, President Richard M. Nixon, Clark MacGregor, H. R. ("Bob") Haldeman, David C. Hoopes, Ronald L. Ziegler, Rose Mary Woods, and Stephen B. Bull met in the Oval Office of the White House from 4:30 pm to 6:15 pm. The Oval Office taping system captured this recording, which is known as Conversation 745-002 of the White House Tapes.
On October 3, 1972, President Richard M. Nixon, Elliot L. Richardson, David C. Hoopes, John D. Ehrlichman, Kenneth R. Cole, Jr., Stephen B. Bull, unknown person(s), Robert P. Griffin, William E. Timmons, Mark I. Goode, Robert Johnson, and John Marshall Gordon met in the Oval Office of the White House from 3:32 pm to 4:16 pm. The Oval Office taping system captured this recording, which is known as Conversation 791-011 of the White House Tapes.
On October 14, 1972, President Richard M. Nixon, Stephen B. Bull, Raymond K. Price, Jr., John D. Ehrlichman, H. R. ("Bob") Haldeman, Manolo Sanchez, and David C. Hoopes met in the Oval Office of the White House from 11:57 am to 1:27 pm. The Oval Office taping system captured this recording, which is known as Conversation 798-015 of the White House Tapes.
On October 17, 1972, President Richard M. Nixon, Ronald L. Ziegler, H. R. ("Bob") Haldeman, Stephen B. Bull, David C. Hoopes, and Alexander M. Haig, Jr. met in the Oval Office of the White House from 9:59 am to 10:21 am. The Oval Office taping system captured this recording, which is known as Conversation 801-005 of the White House Tapes.
On November 2, 1972, President Richard M. Nixon and David C. Hoopes met in the President's office in the Old Executive Office Building from 7:00 pm to 7:04 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 390-021 of the White House Tapes.
On December 18, 1972, President Richard M. Nixon, Ronald L. Ziegler, and David C. Hoopes met in the President's office in the Old Executive Office Building from 1:20 pm to 1:40 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 381-015 of the White House Tapes.
On February 27, 1973, President Richard M. Nixon and David C. Hoopes met in the Oval Office of the White House at an unknown time between 4:36 pm and 4:37 pm. The Oval Office taping system captured this recording, which is known as Conversation 864-006 of the White House Tapes.
On April 9, 1973, President Richard M. Nixon and David C. Hoopes met in the President's office in the Old Executive Office Building from 7:48 pm to 7:50 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 425-046 of the White House Tapes.
On June 5, 1973, President Richard M. Nixon, Stephen B. Bull, and David C. Hoopes met in the President's office in the Old Executive Office Building from 2:40 pm to 2:44 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 441-017 of the White House Tapes.
On June 7, 1973, President Richard M. Nixon and David C. Hoopes met in the President's office in the Old Executive Office Building from 3:30 pm to 3:32 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 441-033 of the White House Tapes.
On June 13, 1973, President Richard M. Nixon and David C. Hoopes met in the President's office in the Old Executive Office Building from 1:30 pm to 1:31 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 445-007 of the White House Tapes.
On June 14, 1973, President Richard M. Nixon and David C. Hoopes met in the Oval Office of the White House from 9:23 am to 9:24 am. The Oval Office taping system captured this recording, which is known as Conversation 940-001 of the White House Tapes.
On June 14, 1973, President Richard M. Nixon and David C. Hoopes met in the Oval Office of the White House at an unknown time between 10:52 am and 10:56 am. The Oval Office taping system captured this recording, which is known as Conversation 940-003 of the White House Tapes.