'At Number 10, Downing Street', c1922, (1945). Sir Winston Churchill (1874-1965) with Arthur Balfour, French President Raymond Poincare, British Prime Minister David Lloyd George and Marshal Philippe Petain, at a lunch given for Poincare. British politician and statesman Winston Churchill was Prime Minister of the United Kingdom from 1940 to 1945, and again from 1951 to 1955. From "The Life and Times of Winston Churchill", by Malcolm Thomson. [Odhams Press Limited, London]