Rhode Island—1862, Dec. 1, Samuel G. Arnold succeeded James F. Simmons, resigned.
New Jersey—1862, Dec. 1, Richard S. Field succeeded, by appointment, John R. Thompson, deceased Sept. 12, 1862. 1863, Jan. 21, James, W. Wall, succeeded, by election, Richard S. Field.
Maryland—1863, Jan. 14, Thomas H. Hicks, first by appointment and then by election succeeded James A. Pearce, deceased Dec. 20, 1862.
Virginia—1861, July 13, John S. Carlile and Waitman T. Willey, sworn in place of Robert M. T. Hunter and James M. Mason, withdrawn and abdicated.
Kentucky—1861, Dec. 23, Garrett Davis succeeded John C. Breckinridge, expelled December 4.
Indiana—1862, March 3, Joseph A. Wright succeeded Jesse D. Bright, expelled Feb. 5, 1863, Jan. 22, David Turpie, superseded, by election, Joseph A. Wright.
Illinois—1863, Jan. 30, William A. Richardson superseded, by election, O. H. Browning.
Missouri—1861, Jan. 24, R. Wilson succeeded Waldo P. Johnson, expelled Jan. 10. 1862, Jan. 29, John B. Henderson succeeded Trusten Polk, expelled Jan. 10.
Michigan—1862, Jan. 17, Jacob M. Howard succeeded K. S. Bingham, deceased October 5, 1861.
Oregon—1862, Dec. 1, Benjamin F. Harding succeeded Edward D. Baker, deceased Oct. 21, 1862.