This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shows Reasoner and Wallace the Yellow Oval Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the Queens' Bedroom with members of the crew. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon is seen in the Queens' Bedroom with creator and producer Don Hewitt and members of the crew. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shows Reasoner and Wallace the Yellow Oval Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shows Reasoner and Wallace the Yellow Oval Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon can be seen with Reasoner, Wallace, and the crew in the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon is seen with Reasoner, Wallace, and creator and producer Don Hewitt in the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon can be seen with Wallace, Reasoner, and the crew in the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon is seen with creator and producer Don Hewitt in the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shows Reasoner and Wallace the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shows Reasoner and Wallace the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon shares the President's Dining Room with Wallace. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon can be seen with crew in the Center Hall. The tour was broadcast on May 26, 1970.

This behind-the-scenes photograph of Tricia Nixon's "60 Minutes" tour of the White House was taken on April 25, 1970 by James E. Russell. Nixon, the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon, guided reporters Harry Reasoner and Mike Wallace through the living quarters used by the First Family, including rooms not often seen by the public. In this photograph, Nixon is seen showing Wallace and Reasoner the Truman Balcony. The tour was broadcast on May 26, 1970.