Private practice, Paris, Maine, 1810-1811
Prosecutor, Oxford County, Maine, 1811-1813
State representative from Paris, Maine, 1813-1814
State senator from Oxford and Somerset Counties, Maine, 1814-1815
U.S. representative from Massachusetts, 1815-1818
Judge, Cumberland County [Maine] Probate Court, 1820-1821
Governor, Maine, 1822-1827
U.S. senator from Maine, 1827-1828
Associate justice, Maine Supreme Judicial Court, 1828-1836
Second comptroller, U.S. Department of the Treasury, 1836-1850
Private practice, Portland, Maine, 1849-1852
Mayor, Portland, Maine, 1852
Candidate for governor, Maine, 1854