1783 - 1801   William Pitt the Younger

1783             Charles James Fox and Lord North
                    (Jointly)

1782 -1783    Thomas Townshend

1782             Charles James Fox

1768 - 1782   Lord Frederick North

1765 - 1768   Henry Seymour Conway

1763 - 1765   George Grenville

1762 - 1763   Henry Fox

1761 - 1762   George Grenville

1756 - 1761   William Pitt the Elder

1755 - 1756   Henry Fox

1754 - 1755   Sir Thomas Robinson

1743 - 1754   Henry Pelham

1742 - 1743   Samuel Sandys

1721 - 7142   Robert Walpole