Harold Macmillan and Winston Churchill, January 1957.
© NMeM / Daily Herald Archive / Science & Society Picture Library
Macmillan, the new prime minister, shakes hands with a previous PM. Maurice Harold Macmillan, 1st earl of Stockton, was British prime minister 1957-1963. Churchill was prime minister from 1940 until 1945, and then again from 1951 until his resignation in 1955.