# 37th United States Congress

**Section:** House of Representatives

| District | Vacator | Reason for change | Successor | Date of successor's formal installation |
|---|---|---|---|---|
| Colorado Territory At-large | New seat. | New seat. | Hiram P. Bennett (Conservative R) | August 19, 1861 |
| Nevada Territory At-large | New seat. | New seat. | John Cradlebaugh (I) | December 2, 1861 |
| Dakota Territory At-large | New seat. | New seat. | John B. S. Todd (D) | December 9, 1861 |
| Louisiana 1st | Vacant. | Vacant. | Benjamin F. Flanders (U) | December 3, 1862 |
| Louisiana 2nd | Vacant. | Vacant. | Michael Hahn (U) | December 3, 1862 |
| Tennessee 3rd | Vacant | Representative-elect George W. Bridges was arrested by Confederate troops while en route to Washington, D.C. | George W. Bridges (U) | February 25, 1863 |
| Virginia 1st | Vacant. | Vacant. | Joseph E. Segar (U) | May 6, 1862 |
| California At-large | Vacant | Low not permitted to take seat, qualified later under special act of Congress, 12 Stat. 411 | Frederick F. Low (R) | June 3, 1862 |
| Virginia 7th | Vacant. | Vacant. | Charles H. Upton (U) | July 4, 1861 |
| Ohio 7th | Thomas Corwin (R) | Resigned March 12, 1861, to become Minister to Mexico. | Richard A. Harrison (U) | July 4, 1861 |
| Ohio 13th | John Sherman (R) | Resigned March 12, 1861, when elected U.S. Senator. | Samuel T. Worcester (R) | July 4, 1861 |
| Pennsylvania 12th | George W. Scranton (R) | Died March 24, 1861. | Hendrick B. Wright (D) | July 4, 1861 |
| Massachusetts 3rd | Charles F. Adams, Sr. (R) | Resigned May 1, 1861, to become Ambassador to Great Britain. | Benjamin Thomas (U) | June 11, 1861 |
| Pennsylvania 2nd | Edward Joy Morris (R) | Resigned June 8, 1861, to become Minister Resident to Turkey. | Charles J. Biddle (D) | July 2, 1861 |
| Virginia 11th | John S. Carlile (U) | Resigned July 9, 1861, to become United States Senator from the loyal faction of Virginia. | Jacob B. Blair (U) | December 2, 1861 |
| Missouri 3rd | John B. Clark (D) | Expelled July 13, 1861, for having taken up arms against the Union. | William A. Hall (D) | January 20, 1862 |
| Oregon At-large | Andrew J. Thayer (D) | Election was successfully contested July 30, 1861. | George K. Shiel (D) | July 30, 1861 |
| Missouri 5th | John W. Reid (D) | Withdrew August 3, 1861, and then expelled December 2, 1861, for having taken up arms against the Union. | Thomas L. Price (D) | January 21, 1862 |
| Iowa 1st | Samuel Curtis (R) | Resigned August 4, 1861, to become colonel of the 2nd Iowa Infantry. | James F. Wilson (R) | October 8, 1861 |
| Massachusetts 5th | William Appleton (CU) | Resigned September 27, 1861, due to failing health. | Samuel Hooper (R) | December 2, 1861 |
| Illinois 6th | John A. McClernand (D) | Resigned October 28, 1861, to accept a commission as brigadier general of volunteers for service in the Civil War. | Anthony L. Knapp (D) | December 12, 1861 |
| Kentucky 1st | Henry C. Burnett (D) | Expelled December 3, 1861, for support of secession. | Samuel L. Casey (U) | March 10, 1862 |
| Kentucky 2nd | James S. Jackson (U) | Resigned December 13, 1861, to enter the Union Army. | George H. Yeaman (U) | December 1, 1862 |
| Virginia 7th | Charles H. Upton (U) | Declared not entitled to seat February 27, 1862. | Lewis McKenzie (U) | February 16, 1863 |
| Illinois 9th | John A. Logan (D) | Resigned April 2, 1862, to enter the Union Army. | William J. Allen (D) | June 2, 1862 |
| Pennsylvania 7th | Thomas B. Cooper (D) | Died April 4, 1862. | John D. Stiles (D) | June 3, 1862 |
| Massachusetts 9th | Goldsmith F. Bailey (R) | Died May 8, 1862. | Amasa Walker (R) | December 1, 1862 |
| Maine 2nd | Charles W. Walton (R) | Resigned May 26, 1862, to become associate justice of the Maine Supreme Judicial Court. | Thomas A. D. Fessenden (R) | December 1, 1862 |
| Wisconsin 2nd | Luther Hanchett (R) | Died November 24, 1862. | Walter D. McIndoe (R) | January 26, 1863 |
| Illinois 5th | William A. Richardson (D) | Resigned January 29, 1863, after being elected to the U.S. Senate. | Vacant thereafter | Vacant thereafter |