John Jr. was two, nearing three. Infact, JFK's funeral was held on his third bithday, three days after the assassination.
Caroline was almost six. Her birthday was five days after her father died.
They are 22,20 and 17 as of 2010.
She was 64 .
Joseph (1915-1944), John (1917-1963), Rosemary (1918-2005), Kathleen (1920-1948), Eunice (1921-2009), Patricia (1924-2006), Robert (1925-1968), Jean (1928-), Edward (1932-2009).
Joe Kennedy, Sr. died about three months short of his 81st birthday. Joe Jr. was killed in the war at age 29.
John F Kennedy was 45 years old when he died.