About this recording 3–143 Alexander P. Butterfield White House operator Toni Sidley May 26, 1971 Alexander P. Butterfield White House Operator Toni Sidley Secret White House Tapes | Richard M. Nixon Presidency 3–143 Backward Play Stop Forward Download audio Previous 3–125 Next 504–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 504–1 audio icon 504–10 audio icon 504–11 audio icon 504–12 audio icon 504–13 audio icon 504–14 audio icon 504–15 audio icon 3–150 audio icon 3–151 audio icon 3–152 audio icon