She continued to help as much as she was physically able until the birth of their son, John Jr., on November 25, 1960. As soon as John Kennedy was elected president, Jackie began working to reorganize the White House so that she could turn it into a home for her children and protect their privacy. At the same time she was well aware of the importance of the White House as a public institution. She formed the White House Historical Association to help her with the task of redecorating the building. She also formed a Special Committee for White House Paintings to further advise her. While as a mother Jackie was interested in protecting her children, as First Lady she felt strongly that the White House was a national monument. She wrote the forward to The White House: A Historical Guide. She also developed the idea of a filmed tour of the White House that she would conduct. The tour was broadcast on Valentine's Day 1962 and was eventually distributed to 106 countries. In April 1963 the Kennedys announced that Jackie was pregnant. On August 7, 1963, Patrick Bouvier Kennedy was born. He died three days later. In November of 1963 Jackie Kennedy accompanied her husband on a trip to Texas. She was riding by his side when he an assassin’s bullet struck John Kennedy, killing him instantly. Lee Harvey Oswald was immediately pinned as the rifleman. Two days later, as police escorted Oswald from a county jail, he was shot and killed by Dallas nightclub owner Jack Ruby. To this day, there has remained an undercurrent of suspicion about the role of the FBI in covering up evidence surrounding Kennedy’s death, and Oswald himself claimed to be nothing more than “a patsy” in the murder, leading to further speculations about a conspiracy theory. In the days that followed his death the image of his widow and children, and the dignity with which they conducted themselves, were very much a part of the nation's experience of mourning and loss. After Leaving the White House

In the years immediately after her husband's death Jackie Kennedy was seen very much in the role of his widow, while at the same time there was constant speculation about whether or not she would remarry. Jackie was actively involved in Bobby Kennedy's presidential bid in 1968, however, tragedy struck again in June when Bobby was assasinated by Sirhan Sirhan, a Jordanian immigrant, immediately after winning the California Democratic presidential primary. In October 1968, Jackie Kennedy married Aristotle Onassis, a Greek shipping magnate. He was 62 and she was 39.