| member of the 54th Parliament of the United Kingdom | | | |
| member of the 57th Parliament of the United Kingdom | | | |
| member of the 58th Parliament of the United Kingdom | | | |
| member of the 55th Parliament of the United Kingdom | | | |
| member of the 56th Parliament of the United Kingdom | | | |
| member of the 59th Parliament of the United Kingdom | | - | |
| Member of the Privy Council of the United Kingdom | | - | |
| Parliamentary Under-Secretary of State for Scotland | | | |
| Member of the House of Commons | - | - | |
| Secretary of State for Scotland | | | |
| Member of the House of Commons | | - | |
