Jacqueline Kennedy attending the inauguration of her husband, President John F. Kennedy.

Jacqueline Kennedy attending the inauguration of her husband, President John F. Kennedy.

President John F. Kennedy and First Lady Jacqueline Kennedy attend the inaugural ball January 20, 1961.

President John F. Kennedy and First Lady Jacqueline Kennedy attend the inaugural ball January 20, 1961.

Jacqueline Kennedy and her husband, newly elected President John F. Kennedy on the morning of his snowy Inauguration Day ceremony.

Jacqueline Kennedy and her husband, newly elected President John F. Kennedy on the morning of his snowy Inauguration Day ceremony.

John F. Kennedy Inaugural Gala from the National Guard Armory in Washington, D.C. on January 19,1961 hosted by Frank Sinatra.

President John Kennedy with wife Jacqueline in the Inaugural Parade.

President John Kennedy with wife Jacqueline in the Inaugural Parade.

American President John Fitzgerald Kennedy stands on a platform for his inauguration as 35th President on the east front of the US Capitol, January 20, 1961. His parents, Rose and Joseph Kennedy, First Lady Jacqueline Kennedy, Vice President Lyndon Baines Johnson and his wife, Lady Bird Johnson accompany him on the platform.

American President John Fitzgerald Kennedy stands on a platform for his inauguration as 35th President on the east front of the US Capitol, January 20, 1961. His parents, Rose and Joseph Kennedy, First Lady Jacqueline Kennedy, Vice President Lyndon Baines Johnson and his wife, Lady Bird Johnson accompany him on the platform.

New President John F. Kennedy & wife Jacqueline Kennedy and others walking to his Inauguration.

New President John F. Kennedy & wife Jacqueline Kennedy and others walking to his Inauguration.

Jacqueline Kennedy on the cover of Time magazine, January 20th, 1961.

Jacqueline Kennedy on the cover of Time magazine, January 20th, 1961.

JANUARY 20, 1961 Jacqueline Kennedy and her husband, newly elected President John F. Kennedy on the day of his Inauguration.

JANUARY 20, 1961 Jacqueline Kennedy and her husband, newly elected President John F. Kennedy on the day of his Inauguration.

Mrs. John F. Kennedy and President John F. Kennedy with French President Charles De Gaulle during Kennedy visit to Paris.

Mrs. John F. Kennedy and President John F. Kennedy with French President Charles De Gaulle during Kennedy visit to Paris.

Video screen grab of American First Lady Jacqueline Kennedy (1960 - 1999) during an interview in the White House, Washington DC, January 15, 1962. The interview aired as a CBS News Special program called ‘A Tour of the White House with Mrs. John F. Kennedy.’

Video screen grab of American First Lady Jacqueline Kennedy (1960 - 1999) during an interview in the White House, Washington DC, January 15, 1962. The interview aired as a CBS News Special program called ‘A Tour of the White House with Mrs. John F. Kennedy.’

First Lady Jackie Kennedy speaks to a guest while attending a White House ceremony January 8, 1963.

First Lady Jackie Kennedy speaks to a guest while attending a White House ceremony January 8, 1963.