The term "Derby Dilly" was coined by Irish Nationalist leader Daniel O'Connell. Besides Stanley, the other principal members of the Dilly were Sir James Graham, who had resigned as First Lord of the Admiralty; Lord Ripon, who had resigned as Lord Privy Seal; and the Duke of Richmond, who had resigned as Postmaster General. These four ministers had come from notably different political backgrounds—Stanley and Graham were old Whigs, Ripon was a former Canningite Tory prime minister, while Richmond was an arch-conservative Tory who had incongruously found himself in the Grey cabinet.