The seat had become vacant when the Conservative Member of Parliament (MP) Sir Sidney Herbert had died on 22 March 1939.
Herbert Hoover | Sir | Sir Walter Scott | baronet | Baronet | Louis Mountbatten, 1st Earl Mountbatten of Burma | Horatio Nelson, 1st Viscount Nelson | Herbert Kitchener, 1st Earl Kitchener | Sidney Poitier | Herbert von Karajan | Charles Cornwallis, 1st Marquess Cornwallis | 1st United States Congress | Frederick Roberts, 1st Earl Roberts | Bernard Montgomery, 1st Viscount Montgomery of Alamein | Frank Herbert | William Cecil, 1st Baron Burghley | Sir Arthur Conan Doyle | Sidney Lumet | Robert Harley, 1st Earl of Oxford and Earl Mortimer | George Villiers, 1st Duke of Buckingham | Thomas Wentworth, 1st Earl of Strafford | Herbert Marcuse | William Pitt, 1st Earl of Chatham | Sir Robert Peel | Sidney Nolan | Herbert Read | Joseph Lister, 1st Baron Lister | Herbert Blomstedt | Sidney Bechet | Robert Baden-Powell, 1st Baron Baden-Powell |
The Bridgeman Baronetcy, of Ridley in the County of Chester, was created on 12 November 1773 for Orlando Bridgeman, Member of Parliament for Horsham and younger son of the 1st Baronet, of the Great Lever creation.
For over 50 years Copley has been the partner of John Hugh Chadwyck-Healey (born 1922), grandson of Charles Chadwyck-Healey, 1st Baronet.
Pollock was the fifth son of Mr George Pollock, fourth son of Sir Frederick Pollock (1st Baronet, of Hatton) (elder brother of Field Marshal Sir George Pollock, 1st Baronet, of The Khyber Pass).