Private practice, New York City, 1841-1848
Private practice, San Francisco, California, 1850
Private practice, Marysville, California, 1850-1857
Alcalde, Marysville, California, 1850
State assemblyman, California, 1850-1851
Justice, Supreme Court of California, 1857-1863; chief justice, 1859-1863
Nominated to U.S. Circuit Court for the Districts of California, February 25, 1863; no Senate vote
Allotment as Circuit Justice:
Tenth Circuit, June 22, 1863-July 23, 1866
Ninth Circuit, April 8, 1867-December 1, 1897
Second Circuit, January 30, 1882-April 2, 1882