About this recording 21–51 H. R. Haldeman White House operator March 13, 1972 H. R. Haldeman White House Operator Conversation No. 21-51 Date: March 13, 1972 Time: Unknown between 11:21 am and 3:50 pm Location: White House Telephone H. R. (“Bob”) Haldeman talked with the White House operator. [See Conversation No. 683-4C] Request for a call to Constance M. Stuart Secret White House Tapes | Richard M. Nixon Presidency 21–51 Rewind 10 seconds Play/Pause Fast-forward 10 seconds 0:00 Download audio Previous 949–9 Next 450–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 450–1 audio icon 47–1 audio icon 450–10 audio icon 450–11 audio icon 450–12 audio icon 450–13 audio icon 450–14 audio icon 450–15 audio icon 450–16 audio icon 450–17 audio icon