Surveyor, St. Charles County, Missouri
Justice of the peace, St. Charles County, Missouri, 1841-1843
Private practice, St. Charles County, Missouri, 1844-
County/city attorney, St. Charles County and St. Charles City, Missouri, 1846-1850
Editor, St. Charles [Missouri] Democrat, 1850-1864
State representative, Missouri, 1852
Lecturer, University of Missouri School of Law, 1872-1875