David Lloyd George , 1st Earl Lloyd-George of Dwyfor , OM PC ( 17 January 1863 - 26 March 1945 ) was a British Liberal politician and statesman .
David Lloyd George , 1st Earl Lloyd-George of Dwyfor OM , PC ( 17 January 1863 - 26 March 1945 ) was the British Prime Minister during the last half of World War I . He was Prime Minister for six years , between 1916 and 1922 .