- California (1850)
- Connecticut
- Illinois (1818)
- Indiana (1816)
- Iowa (1846)
- Maine (1820)
- Massachusetts
- Michigan (1837)
- New Hampshire
- New Jersey
- New York
- Ohio (1803)
- Oregon (1859)
- Pennsylvania
- Rhode Island
- Vermont (1791)
- Wisconsin (1848)
Slave States:
- Alabama (1819)
- Arkansas (1836)
- Delaware
- Florida (1845)
- Georgia
- Kentucky (1792)
- Louisiana (1812)
- Maryland
- Mississippi (1817)
- Missouri (1821)
- North Carolina
- South Carolina
- Tennessee (1796)
- Texas (1845)
- Virginia