George M. Dallas
In 1856, Franklin Pierce appointed Dallas minister to Great Britain, and he served as the minister until Abraham Lincoln appointed Charles F. Adams. When he started his service in England, he was called to work on the Central American question and the request made by the United States that Sir John Crampton, the British minister to the United States, should be recalled. At the end of his diplomatic career, Dallas returned to private life. He stopped getting involved in public affairs, except to condemn the Confederacy.