Sir Robert Walpole -- Soencer Compton, Earl of Wilmington -- Henry Pelham -- Thomas Pelham-Holles, Duke of Newcastle -- William Cavendish, 4th Duke of Devonshire -- John Stuart, 3rd Earl of Bute -- George Grenville -- Charles Watson Wentworth, 2nd Marquis of Rockingham -- William Pitt, Earl of Chatham -- Augustus Henry Fitzroy, 3rd Duke of Grafton -- Frederick, Lord North -- William Petty Fitzmaurice, 2nd Earl of Shelburne -- William Cavendish-Bentinck, 3rd Duke of Portland -- William Pitt, the Younger -- Henry Addington -- William Wyndham, Lord Grenville -- SPencer Perceval -- Robert Banls Jenkinson, 2nd Earl of Liverpool -- George Canning -- Frederick John Robinson, Viscount Goderich -- Arthur Wellesley, Duke of Wellington -- Charles, 2nd Earl Grey -- William Lamb, 2nd Viscount Melbourne -- Sir Robert Peel, 2nd Baronet -- Lord John Russell -- Edward Geoffrey Stanley, 14th Earl of Derby -- George Hamilton Gordon, 4th Earl of Aberdeen -- Henry John Temple, 3rd Viscount Palmerston -- Benjamin Disraeli, Earl of Beaconsfield -- William Ewart Gladstone -- Robert Arthur Talbot Gascoyne-Cecil, 3rd Marquis of Salisbury -- Archibald Philip Primrose, 5th Earl of Rosebery -- Arthur James Balfour -- Sir Henry Campbell-Bannerman -- Herbert Henry Asquith -- David Lloyd George -- Andrew Bonar Law -- Stanley Baldwin -- James Ramsay MacDonald -- Arthur Neville Chamberlain -- Sir Winston Leonard Spencer Churchill -- Clement Richard Atlee -- Sir Anthony Eden -- Maurice Harold Macmillan -- Sir Alec Douglas-Home -- James Harold Wilson -- Edward Richard George Heath -- Leonard James Callaghan -- Margaret Hilda Thatcher.