John Fitzgerald "Jack" Kennedy (May 29, 1917 – November 22, 1963), often referred to by his initials JFK, was the 35th President of the United States, serving from 1961 until his death in 1963. http://en.wikipedia.org/wiki/John_F._Kennedy
JFK always cared about his clothes, changing his shirts three or four times a day. This is very ironic, especially given JFK in his youth always looked unkempt and dirty. The Kennedy's believed that your image was of the upmost importance to how people perceived you, and this led to a certain vanity in JFK. - Y.