John F. Kennedy

John Fitzgerald Kennedy, known also as "JFK", was President of the United States from 1961 until 1963. Kennedy was involved in the Cuban Missile Crisis. His Presidency ended in 1963 when he was assassinated in Dallas, Texas. (MA: Who Killed Kennedy)

Minor reference
A mannequin of Kennedy, along with those of other historic figures, was included in a display at Madame Tussaud's. (DW: Spearhead from Space)

Behind the Scenes
The first Doctor Who episode An Unearthly Child was broadcast a day after Kennedy's assassination.