About this recording 1–139 President Richard M. Nixon White House operator April 18, 1971 White House Operator Richard M. Nixon Conversation No. 1-139 Date: April 18, 1971 Time: Unknown between 9:15 am and 9:48 am Conv. No. 1-136 (cont.) Location: White House Telephone The President talked with the White House operator. Call to Usher's Office Secret White House Tapes | Richard M. Nixon Presidency 1–139 Backward Play Stop Forward Download audio Previous 481–9 Next 2–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 2–1 audio icon 54–1 audio icon 482–10 audio icon 482–11 audio icon 482–12 audio icon 482–13 audio icon 482–14 audio icon 482–15 audio icon 482–16 audio icon 482–17 audio icon