In this photograph taken by Robert L. Knudsen on June 12, 1971, Tricia Nixon holds hands with her father, President Richard M. Nixon, on the steps of the North Portico following her wedding reception at the White House. Her husband, Edward Cox, her mother, First Lady Pat Nixon, and her sister Julie Nixon Eisenhower are also pictured next to her. The group is surrounded by guests and members of the press. This was the 16th documented wedding to take place at the White House and the first to be held in the Rose Garden. Nixon was the daughter of President Richard M. Nixon and First Lady Pat Nixon. Approximately 400 guests watched the nuptials in the Rose Garden.

In this photograph, taken June 12, 1971 by Jack E. Kightlinger, Tricia Nixon exchange vows with Edward Cox during their wedding ceremony under a specially built gazebo in the White House Rose Garden. It shows the view of the ceremony from behind Rev. Dr. Edward Latch, who officiated. Theirs was the 16th documented wedding to take place at the White House and the first to be held in the Rose Garden or outdoors. Nixon was the daughter of President Richard M. Nixon and First Lady Pat Nixon. Approximately 400 guests watched the first daughter marry Edward Cox, a law student at the time, in the Rose Garden.

In this photograph, Tricia Nixon unwraps presents during a bridal shower that was held in her honor by Second Lady Judy Agnew on June 1, 1971. Seated near Tricia Nixon are, from left to right: her sister Julie Nixon Eisenhower (on floor), former First Lady Mamie Eisenhower, and First Lady Pat Nixon, Tricia's mother. Tricia Nixon married Edward Cox, a law student at the time, in a Rose Garden ceremony on June 12, 1971.

This photograph showing guests toasting Tricia Nixon and Edward Cox at their wedding rehearsal dinner was taken on June 11, 1971 by Jack E. Kightlinger. The rehearsal dinner took place at Blair House. Blair House is located across Pennsylvania Avenue from the White House and is known as the President's Guest House. Visiting diplomats and dignitaries stay at Blair House while on official visits to the White House, and it is where the president-elect and first family reside prior to taking the oath of office.

In this photograph, Tricia Nixon unwraps presents during a bridal shower that was held in her honor by Second Lady Judy Agnew on June 1, 1971. Seated near Tricia Nixon (in white at right) are, from left to right: her sister Julie Nixon Eisenhower (on floor), former First Lady Mamie Eisenhower, and First Lady Pat Nixon, Tricia's mother. Tricia Nixon married Edward Cox, a law student at the time, in a Rose Garden ceremony on June 12, 1971.

In this photograph taken on May 26, 1971, by Robert L. Knudsen, Tricia Nixon opens gifts at a bridal shower in her honor, hosted by the women of the press. Sitting on the couch with Tricia are, from left to right: reporter Helen Thomas, Tricia's mother, First Lady Pat Nixon, and her future mother-in-law Anne Crane Delafield (Finch) Cox. Julie Nixon Eisenhower, Tricia Nixon's younger sister sits on the floor. The bridal shower was held at Decatur House. Completed in 1818, Decatur House was the third building on Lafayette Square and its first private residence. It was designed by Benjamin Henry Latrobe, the architect of the Capitol, and several other famous buildings, for Commodore Stephen Decatur (1779-1820) and his wife, Susan Wheeler Decatur. Tragically, on March 22, 1820, Stephen Decatur was mortally wounded during a duel. After his death, his widow Susan Decatur rented out the house to foreign ministers and several secretaries of state. The house was eventually sold and passed through several hands, including the Gadsby family, the U.S. Subsistence Bureau, and the Beale family. Marie Ogle Beale, a society maven, and the last owner, left the house to National Trust for Historic Preservation in 1961. In 2010, the White House Historical Association and National Trust entered into a co-stewardship arrangement of Decatur House.

This photograph was taken by National Geographic photographer Joseph J. Scherschel in December 1969 at a White House Christmas party during the administration of Richard M. Nixon. Here, first daughter Julie Nixon Eisenhower poses alongside a costumed "Santa Claus," likely a member of the White House staff, in the Entrance Hall. This photo may have been taken at a Christmas party for White House staff, which was held on December 21, 1969.

In this photograph, taken by Jack E. Kightlinger on December 12, 1971, First Lady Pat Nixon and her eldest daughter, Julie Nixon Eisenhower, examine Christmas decorations in the Entrance Hall.

In this photograph, taken by Andrew Grove on August 17, 1972, First Lady Pat Nixon and her daughter Julie Nixon Eisenhower receive members of the United States Olympic Team in the State Dining Room prior to their departure for the 1972 Summer Games in Munich, West Germany. Among the attendees at the reception were members of the 1972 men's Olympic basketball team. Undefeated since the sport became part of the Olympic competition in 1936, the American team suffered a devastating defeat to the Soviet Union during the men's basketball final on September 9, 1972. The 1972 Summer Olympics also became infamous for a terrorist attack on September 5, 1972, which resulted in the deaths of two Israeli athletes and nine others held hostage by the Palestinian militant group the Black September Organization.

This portrait of President Richard M. Nixon with his family in the Yellow Oval Room was taken on Father's Day, June 15, 1969. Pictured from left: the president's son-in-law, David Eisenhower; the president's youngest daughter, Julie Nixon Eisenhower; President Nixon; First Lady Pat Nixon; and Tricia Nixon, the president's eldest daughter. This photograph is part of the collection of former White House Executive Chef Henry Haller. As executive chef from 1966-1987, Haller catered to the taste of five first families and their distinguished guests.

In this photograph, newlyweds Tricia Nixon and Edward Cox join family members and their wedding party in the Blue Room. Tricia's parents, President Richard M. Nixon and First Lady Pat Nixon stand near Tricia, along with their younger daughter, Julie Nixon Eisenhower. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as executive chef at the White House from 1966-1987, overseeing the food preparations for the White House wedding receptions for three first daughters: Luci Baines Johnson, Lynda Bird Johnson, and Nixon.

In this photograph, taken June 12, 1971, Tricia Nixon walks down the aisle alongside her new husband Edward Cox following her wedding ceremony held in the White House Rose Garden. The wedding of the eldest daughter of President Richard M. Nixon and First Lady Pat Nixon was the 16th documented wedding to take place at the White House and the first to be held in the Rose Garden. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as executive chef at the White House from 1966-1987, and oversaw the food preparations for the White House wedding receptions of three first daughters: Luci Baines Johnson, Lynda Bird Johnson, and Nixon.

In this photograph, probably taken on June 3, 1974, Julie Nixon Eisenhower visits the Kitchen on the Ground Floor of the White House. She shares with White House Executive Chef Henry Haller a cookbook titled "Five-Star Favorites: Recipes from Friends of Mamie and Ike." "Mamie and Ike," or former President Dwight D. Eisenhower and former First Lady Mamie Doud Eisenhower, were the grandparents of Julie Nixon Eienhower's husband, David. At the bottom of the photograph is a personal note from Julie Nixon Eisenhower to Chef Haller. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as executive chef at the White House from 1966-1987.

In this photograph, taken June 12, 1971, Tricia Nixon exchanges vows with Edward Cox during their wedding ceremony held in the gazebo of the White House Rose Garden. Theirs was the 16th documented wedding to take place at the White House and the first to be held in the Rose Garden. Nixon was the daughter of President Richard M. Nixon and First Lady Pat Nixon. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as executive chef of the White House from 1966-1987, and oversaw food preparations for the wedding receptions for three first daughters: Luci Baines Johnson, Lynda Bird Johnson, and Nixon.

In this photograph, a beaming Tricia Nixon looks up at her new husband Edward Cox outside the North Door to the White House as her father, President Richard M. Nixon, looks on. The outdoor wedding ceremony for Nixon and Cox was held in the Rose Garden of the White House on June 12, 1971. It was the 16th documented wedding to occur at the White House, and the first to be conducted in the Rose Garden. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as executive chef at the White House from 1966-1987, and oversaw the food preparations for the White House wedding receptions for three first daughters: Luci Baines Johnson, Lynda Bird Johnson, and Nixon.

This portrait of President M. Nixon and his family was taken on June 15, 1969 in the Yellow Oval Room. Pictured from left: David Eisenhower, grandson of President Dwight D. Eisenhower and First Lady Mamie Doud Eisenhower; his wife Julie Nixon Eisenhower, youngest daughter of President Nixon; President Nixon; First Lady Pat Nixon; and their eldest daughter Tricia Nixon. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as the executive chef at the White House from 1966-1987.

This photograph of First Lady Pat Nixon and daughter Julie Nixon Eisenhower appreciating the details of the White House gingerbread house was taken by Jack E. Kightlinger on December 13, 1971, during the Richard M. Nixon administration. The house featured the German A-frame design and was based on the story of Hansel and Gretel. It was created by then Assistant Executive Chef Hans Raffert for Mrs. Nixon, who was the first to start this holiday tradition.

This photograph of the Nixon family posing for a portrait in front of 1971 Blue Room Christmas tree was taken by Oliver F. Atkins on December 24, 1971. This photo is among the family's favorite family portraits from their White House years. Pictured from left to right is Edward Cox, Tricia Nixon Cox, First Lady Pat Nixon, President Richard M. Nixon, Julie Nixon Eisenhower, and David Eisenhower.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.

In this photograph, taken on December 13, 1971, First Lady Pat Nixon leads the White House Press Corps on a tour of the holiday decorations in the Blue Room. Mrs. Nixon stands in front of the official White House Christmas Tree, while her daughter, Julie Nixon Eisenhower, watches from the side with the press. The official White House Christmas Tree for 1971 was adorned with velvet-and-silk state flower ornaments created in 1969, gold foil fan ornaments created for the 1970 holiday season, and gold foil angels newly added for 1971.