Private practice, Salem, New Jersey, 1825-1832
State assemblyman, New Jersey, 1833-1834, 1837
Private practice, Princeton, New Jersey 1834-1838, 1842-1847, 1855-1862
Attorney general, State of New Jersey, 1838-1841
Professor, Law Department, Princeton University, 1847-1855
U.S. senator from New Jersey, 1862-1863