Secretary and charge d`affaires, London legation, U.S. Department of State, 1849-1852
Private practice, New York City, 1853-1862
American corespondent, London Times, 1854-1861
State assemblyman, New York, 1868-1869
Assistant secretary of state, 1869-1871, 1881-1882
Secretary and U.S. agent, Joint High Commission, Geneva, Switzerland, 1871-1873
Reporter of decisions, Supreme Court of the United States, 1883-1902