December 21, 1850
Special Election
Special Election to fill the vacancy created by the death of L. F. Dunlap, who was elected in 1850 but died before qualifying.
| AD-12 | |||
| Daniel J. Lisle | Whig | Win | |
| John M. McBrayer | Unknown | Loss | |
| George E. Montgomery | Unknown | Loss | |
| Henry A. Schoolcraft | Unknown | Loss | |
| F. W. Thayer | Unknown | Loss | |
