39th United States Congress

The 39th United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C., from March 4, 1865, to March 4, 1867, during Abraham Lincoln's final month as president, and the first two years of the administration of his successor, Andrew Johnson.

The apportionment of seats in this House of Representatives was based on the 1860 United States census. Both chambers had a Republican majority.

Major events

 * March 4, 1865: Second inauguration of President Abraham Lincoln.
 * April 9, 1865: Surrender of Confederate forces at Appomattox Court House, effectively ending the American Civil War
 * April 15, 1865: Assassination of President Abraham Lincoln, Vice President Andrew Johnson became President of the United States
 * December 11, 1865: Creation of the House Appropriations Committee and the House Banking and Commerce Committee, reducing the tasks of the House Ways and Means Committee
 * January, 1866: The second and current United States Capitol dome completed after 11 years of work.
 * July 24, 1866: Tennessee became the first U.S. state to be readmitted to the Union following the American Civil War.
 * November 5, 1866: United States House of Representatives elections, 1866
 * January 8, 1867: African American men are granted the right to vote in the District of Columbia

Major legislation

 * April 9, 1866: Civil Rights Act of 1866, Sess. 1, ch. 31,
 * July 16, 1866: Freedmen's Bureau Bill, Sess. 1, ch. 200,
 * July 23, 1866: Judicial Circuits Act, Sess. 1, ch. 210,, reduced the number of United States circuit courts to nine and the number of Supreme Court justices to seven
 * July 23, 1866: District of Columbia Public Schools Act ("An Act relating to Public Schools in the District of Columbia"), Sess. 1, ch. 217,
 * July 25, 1866: An Act to revive the grade of General in the United States Army, Sess. 1, ch. 232,, (now called "4-star general"); Lieutenant General Ulysses S. Grant became the first to have this rank.
 * July 28, 1866: Metric Act of 1866, Sess. 1, ch. 301,, legalized the use of the metric system for weights and measures in the United States.
 * July 28, 1866: Washington City Colored Schools Lots Donation Act ("An Act donating certain Lots in the City of Washington for Schools for Colored Children in the District of Columbia"), Sess. 1, ch. 308,
 * March 2, 1867: Reconstruction Act, ch. 153, established five military districts, each headed by a general, in ten states of the former Confederate South (Tennessee excepted), and stipulates conditions for re-admission of these States into the Union.
 * March 2, 1867: Tenure of Office Act, ch. 154, required the president to obtain the Senate's advice and consent to suspend or dismiss certain federal public officials (notably cabinet officers).  Violation of this act will lead to the impeachment of Andrew Johnson by the next (40th) Congress in 1868.

Constitutional amendments

 * December 18, 1865: Thirteenth Amendment to the United States Constitution declared ratified
 * June 13, 1866: Approved an amendment to the Constitution addressing citizenship rights and equal protection of the laws, and submitted it to the state legislatures for ratification
 * Amendment was later ratified on July 9, 1868, becoming the Fourteenth Amendment to the United States Constitution

States admitted

 * July 24, 1866: Tennessee readmitted to representation.
 * March 1, 1867: Nebraska admitted as the 37th state, sess. 2, ch. 36, (over president's veto)

Party summary
The count below identifies party affiliations at the beginning of the first session of this Congress, and includes members from vacancies and newly admitted states, when they were first seated. Changes resulting from subsequent replacements are shown below in the "Changes in membership" section.

Senate
During this Congress, two seats were added for the new state of Nebraska.

House of Representatives
During this Congress, one seat was added for the new state of Nebraska.

Senate

 * President: Andrew Johnson (D), until April 15, 1865; vacant thereafter.
 * President pro tempore: Lafayette S. Foster (R), until March 2, 1867
 * Benjamin F. Wade (R), elected March 2, 1867
 * Republican Conference Chairman: Henry B. Anthony

House of Representatives

 * Speaker: Schuyler Colfax (R)
 * Republican Conference Chairman: Justin S. Morrill

Members
This list is arranged by chamber, then by state. Senators are listed in order of seniority, and representatives are listed by district.

Senate
Senators were elected by the state legislatures every two years, with one-third beginning new six-year terms with each Congress. Preceding the names in the list below are Senate class numbers, which indicate the cycle of their election. In this Congress, Class 1 meant their term began in the last Congress, requiring reelection in 1868; Class 2 meant their term began in this Congress, requiring reelection in 1870; and Class 3 meant their term ended in this Congress, requiring reelection in 1866.
 * Skip to House of Representatives, below

Alabama

 * 2. Vacant
 * 3. Vacant

Arkansas

 * 2. Vacant
 * 3. Vacant

California

 * 1. John Conness (R)
 * 3. James A. McDougall (D)

Connecticut

 * 1. James Dixon (R)
 * 3. Lafayette S. Foster (R)

Delaware

 * 1. George R. Riddle (D)
 * 2. Willard Saulsbury Sr. (D)

Florida

 * 1. Vacant
 * 3. Vacant

Georgia

 * 2. Vacant
 * 3. Vacant

Illinois

 * 2. Richard Yates (R)
 * 3. Lyman Trumbull (R)

Indiana

 * 1. Thomas A. Hendricks (D)
 * 3. Henry S. Lane (R)

Iowa

 * 2. James W. Grimes (R)
 * 3. James Harlan (R), until May 15, 1865
 * Samuel J. Kirkwood (R), from January 13, 1866

Kansas

 * 2. Jim Lane (R), until July 11, 1866
 * Edmund G. Ross (R), from July 19, 1866
 * 3. Samuel C. Pomeroy (R)

Kentucky

 * 2. James Guthrie (D)
 * 3. Garrett Davis (U)

Louisiana

 * 2. Vacant
 * 3. Vacant

Maine

 * 1. Lot M. Morrill (R)
 * 2. William P. Fessenden (R)

Maryland

 * 1. Reverdy Johnson (D)
 * 3. John A. J. Creswell (UU), from March 9, 1865

Massachusetts

 * 1. Charles Sumner (R)
 * 2. Henry Wilson (R)

Michigan

 * 1. Zachariah Chandler (R)
 * 2. Jacob M. Howard (R)

Minnesota

 * 1. Alexander Ramsey (R)
 * 2. Daniel S. Norton (R)

Mississippi

 * 1. Vacant
 * 2. Vacant

Missouri

 * 1. John B. Henderson (R)
 * 3. B. Gratz Brown (R)

Nebraska

 * 1. Thomas Tipton (R), from March 1, 1867 (newly admitted state)
 * 2. John M. Thayer (R), from March 1, 1867 (newly admitted state)

Nevada

 * 1. William M. Stewart (R)
 * 3. James W. Nye (R)

New Hampshire

 * 2. Aaron H. Cragin (R)
 * 3. Daniel Clark (R), until July 27, 1866
 * George G. Fogg (R), from August 31, 1866

New Jersey

 * 1. William Wright (D), until November 1, 1866
 * Frederick T. Frelinghuysen (R), from November 12, 1866
 * 2. John P. Stockton (D), March 15, 1865 – March 27, 1866
 * Alexander G. Cattell (R), from September 19, 1866

New York

 * 3. Ira Harris (R)
 * 1. Edwin D. Morgan (R)

North Carolina

 * 2. Vacant
 * 3. Vacant

Ohio

 * 1. Benjamin Wade (R)
 * 3. John Sherman (R)

Oregon

 * 2. George H. Williams (R)
 * 3. James W. Nesmith (D)

Pennsylvania

 * 1. Charles R. Buckalew (D)
 * 3. Edgar Cowan (R)

Rhode Island

 * 1. William Sprague IV (R)
 * 2. Henry B. Anthony (R)

South Carolina

 * 2. Vacant
 * 3. Vacant

Tennessee

 * 1. David T. Patterson (U), from July 28, 1866
 * 2. Joseph S. Fowler (U), from July 24, 1866

Texas

 * 1. Vacant
 * 2. Vacant

Vermont

 * 1. Solomon Foot (R), until March 28, 1866
 * George F. Edmunds (R), from April 3, 1866
 * 3. Jacob Collamer (R), until November 9, 1865
 * Luke P. Poland (R), from November 21, 1865

Virginia

 * 1. Vacant
 * 2. Vacant

West Virginia

 * 1. Peter G. Van Winkle (UU)
 * 2. Waitman T. Willey (R)

Wisconsin

 * 1. James R. Doolittle (R)
 * 3. Timothy O. Howe (R)



House of Representatives
The names of members of the House of Representatives are preceded by their district numbers.

Alabama

 * Alabama's 1st congressional district. Vacant
 * Alabama's 2nd congressional district. Vacant
 * Alabama's 3rd congressional district. Vacant
 * Alabama's 4th congressional district. Vacant
 * Alabama's 5th congressional district. Vacant
 * Alabama's 6th congressional district. Vacant

Arkansas

 * Arkansas's 1st congressional district. Vacant
 * Arkansas's 2nd congressional district. Vacant
 * Arkansas's 3rd congressional district. Vacant

California
(3 Republicans)
 * California's 1st congressional district. Donald C. McRuer (R)
 * California's 2nd congressional district. William Higby (R)
 * California's 3rd congressional district. John Bidwell (R)

Connecticut
(4 Republicans)
 * Connecticut's 1st congressional district. Henry C. Deming (R)
 * Connecticut's 2nd congressional district. Samuel L. Warner (R)
 * Connecticut's 3rd congressional district. Augustus Brandegee (R)
 * Connecticut's 4th congressional district. John H. Hubbard (R)

Delaware
(1 Democrat)
 * Delaware's at-large congressional district. John A. Nicholson (D)

Florida

 * Florida's at-large congressional district. Vacant

Georgia

 * Georgia's 1st congressional district. Vacant
 * Georgia's 2nd congressional district. Vacant
 * Georgia's 3rd congressional district. Vacant
 * Georgia's 4th congressional district. Vacant
 * Georgia's 5th congressional district. Vacant
 * Georgia's 6th congressional district. Vacant
 * Georgia's 7th congressional district. Vacant

Illinois
(11–3 Republican)
 * Illinois's 1st congressional district. John Wentworth (R)
 * Illinois's 2nd congressional district. John F. Farnsworth (R)
 * Illinois's 3rd congressional district. Elihu B. Washburne (R)
 * Illinois's 4th congressional district. Abner C. Harding (R)
 * Illinois's 5th congressional district. Ebon C. Ingersoll (R)
 * Illinois's 6th congressional district. Burton C. Cook (R)
 * Illinois's 7th congressional district. Henry P. H. Bromwell (R)
 * Illinois's 8th congressional district. Shelby M. Cullom (R)
 * Illinois's 9th congressional district. Lewis W. Ross (D)
 * Illinois's 10th congressional district. Anthony Thornton (D)
 * Illinois's 11th congressional district. Samuel S. Marshall (D)
 * Illinois's 12th congressional district. Jehu Baker (R)
 * Illinois's 13th congressional district. Andrew J. Kuykendall (R)
 * Illinois's at-large congressional district. Samuel W. Moulton (R)

Indiana
(8–3 Republican)
 * Indiana's 1st congressional district. William E. Niblack (D)
 * Indiana's 2nd congressional district. Michael C. Kerr (D)
 * Indiana's 3rd congressional district. Ralph Hill (R)
 * Indiana's 4th congressional district. John H. Farquhar (R)
 * Indiana's 5th congressional district. George W. Julian (R)
 * Indiana's 6th congressional district. Ebenezer Dumont (R)
 * Indiana's 7th congressional district. Daniel W. Voorhees (D), until February 23, 1866
 * Henry D. Washburn (R), from February 23, 1866
 * Indiana's 8th congressional district. Godlove S. Orth (R)
 * Indiana's 9th congressional district. Schuyler Colfax (R)
 * Indiana's 10th congressional district. Joseph H. Defrees (R)
 * Indiana's 11th congressional district. Thomas N. Stilwell (R)

Iowa
(6 Republicans)
 * Iowa's 1st congressional district. James F. Wilson (R)
 * Iowa's 2nd congressional district. Hiram Price (R)
 * Iowa's 3rd congressional district. William B. Allison (R)
 * Iowa's 4th congressional district. Josiah B. Grinnell (R)
 * Iowa's 5th congressional district. John A. Kasson (R)
 * Iowa's 6th congressional district. Asahel W. Hubbard (R)

Kansas
(1 Republican)
 * Kansas's at-large congressional district. Sidney Clarke (R)

Kentucky
(5–4 Democratic)
 * Kentucky's 1st congressional district. Lawrence S. Trimble (D)
 * Kentucky's 2nd congressional district. Burwell C. Ritter (D)
 * Kentucky's 3rd congressional district. Henry Grider (D), until September 7, 1866
 * Elijah Hise (D), from December 3, 1866
 * Kentucky's 4th congressional district. Aaron Harding (D)
 * Kentucky's 5th congressional district. Lovell H. Rousseau (UU), until July 21, 1866, and from December 3, 1866
 * Kentucky's 6th congressional district. Green C. Smith (UU), until July ??, 1866
 * Andrew H. Ward (D), from December 3, 1866
 * Kentucky's 7th congressional district. George S. Shanklin (D)
 * Kentucky's 8th congressional district. William H. Randall (UU)
 * Kentucky's 9th congressional district. Samuel McKee (UU)

Louisiana

 * Louisiana's 1st congressional district. Vacant
 * Louisiana's 2nd congressional district. Vacant
 * Louisiana's 3rd congressional district. Vacant
 * Louisiana's 4th congressional district. Vacant
 * Louisiana's 5th congressional district. Vacant

Maine
(5 Republicans)
 * Maine's 1st congressional district. John Lynch (R)
 * Maine's 2nd congressional district. Sidney Perham (R)
 * Maine's 3rd congressional district. James G. Blaine (R)
 * Maine's 4th congressional district. John H. Rice (R)
 * Maine's 5th congressional district. Frederick A. Pike (R)

Maryland
(3–2 Unconditional Unionist)
 * Maryland's 1st congressional district. Hiram McCullough (D)
 * Maryland's 2nd congressional district. Edwin H. Webster (UU), until July ??, 1865
 * John L. Thomas Jr. (UU), from December 4, 1865
 * Maryland's 3rd congressional district. Charles E. Phelps (UU)
 * Maryland's 4th congressional district. Francis Thomas (UU)
 * Maryland's 5th congressional district. Benjamin G. Harris (D)

Massachusetts
(10 Republicans)
 * Massachusetts's 1st congressional district. Thomas D. Eliot (R)
 * Massachusetts's 2nd congressional district. Oakes Ames (R)
 * Massachusetts's 3rd congressional district. Alexander H. Rice (R)
 * Massachusetts's 4th congressional district. Samuel Hooper (R)
 * Massachusetts's 5th congressional district. John B. Alley (R)
 * Massachusetts's 6th congressional district. Daniel W. Gooch (R), until September 1, 1865
 * Nathaniel P. Banks (R), from December 4, 1865
 * Massachusetts's 7th congressional district. George S. Boutwell (R)
 * Massachusetts's 8th congressional district. John D. Baldwin (R)
 * Massachusetts's 9th congressional district. William B. Washburn (R)
 * Massachusetts's 10th congressional district. Henry L. Dawes (R)

Michigan
(6 Republicans)
 * Michigan's 1st congressional district. Fernando C. Beaman (R)
 * Michigan's 2nd congressional district. Charles Upson (R)
 * Michigan's 3rd congressional district. John W. Longyear (R)
 * Michigan's 4th congressional district. Thomas W. Ferry (R)
 * Michigan's 5th congressional district. Rowland E. Trowbridge (R)
 * Michigan's 6th congressional district. John F. Driggs (R)

Minnesota
(2 Republicans)
 * Minnesota's 1st congressional district. William Windom (R)
 * Minnesota's 2nd congressional district. Ignatius L. Donnelly (R)

Mississippi

 * Mississippi's 1st congressional district. Vacant
 * Mississippi's 2nd congressional district. Vacant
 * Mississippi's 3rd congressional district. Vacant
 * Mississippi's 4th congressional district. Vacant
 * Mississippi's 5th congressional district. Vacant

Missouri
(8–1 Republican)
 * Missouri's 1st congressional district. John Hogan (D)
 * Missouri's 2nd congressional district. Henry T. Blow (R)
 * Missouri's 3rd congressional district. Thomas E. Noell (R)
 * Missouri's 4th congressional district. John R. Kelso (IR)
 * Missouri's 5th congressional district. Joseph W. McClurg (R)
 * Missouri's 6th congressional district. Robert T. Van Horn (R)
 * Missouri's 7th congressional district. Benjamin F. Loan (R)
 * Missouri's 8th congressional district. John F. Benjamin (R)
 * Missouri's 9th congressional district. George W. Anderson (R)

Nebraska
(1 Republican)
 * Nebraska's at-large congressional district. Turner M. Marquette (R), from March 2, 1867 (newly admitted state)

Nevada
(1 Republican)
 * Nevada's at-large congressional district. Delos R. Ashley (R)

New Hampshire
(3 Republicans)
 * New Hampshire's 1st congressional district. Gilman Marston (R)
 * New Hampshire's 2nd congressional district. Edward H. Rollins (R)
 * New Hampshire's 3rd congressional district. James W. Patterson (R)

New Jersey
(3–2 Democratic)
 * New Jersey's 1st congressional district. John F. Starr (R)
 * New Jersey's 2nd congressional district. William A. Newell (R)
 * New Jersey's 3rd congressional district. Charles Sitgreaves (D)
 * New Jersey's 4th congressional district. Andrew J. Rogers (D)
 * New Jersey's 5th congressional district. Edwin R. V. Wright (D)

New York
(20–11 Republican)
 * New York's 1st congressional district. Stephen Taber (D)
 * New York's 2nd congressional district. Teunis G. Bergen (D)
 * New York's 3rd congressional district. James Humphrey (R), until June 16, 1866
 * John W. Hunter (D), from December 4, 1866
 * New York's 4th congressional district. Morgan Jones (D)
 * New York's 5th congressional district. Nelson Taylor (D)
 * New York's 6th congressional district. Henry J. Raymond (R)
 * New York's 7th congressional district. John W. Chanler (D)
 * New York's 8th congressional district. James Brooks (D), until April 7, 1866
 * William E. Dodge (R), from April 7, 1866
 * New York's 9th congressional district. William A. Darling (R)
 * New York's 10th congressional district. William Radford (D)
 * New York's 11th congressional district. Charles H. Winfield (D)
 * New York's 12th congressional district. John H. Ketcham (R)
 * New York's 13th congressional district. Edwin N. Hubbell (D)
 * New York's 14th congressional district. Charles Goodyear (D)
 * New York's 15th congressional district. John Augustus Griswold (R)
 * New York's 16th congressional district. Orlando Kellogg (R), until August 24, 1865
 * Robert S. Hale (R), from December 3, 1865
 * New York's 17th congressional district. Calvin T. Hulburd (R)
 * New York's 18th congressional district. James M. Marvin (R)
 * New York's 19th congressional district. Demas Hubbard Jr. (R)
 * New York's 20th congressional district. Addison H. Laflin (R)
 * New York's 21st congressional district. Roscoe Conkling (R)
 * New York's 22nd congressional district. Sidney T. Holmes (R)
 * New York's 23rd congressional district. Thomas T. Davis (R)
 * New York's 24th congressional district. Theodore M. Pomeroy (R)
 * New York's 25th congressional district. Daniel Morris (R)
 * New York's 26th congressional district. Giles W. Hotchkiss (R)
 * New York's 27th congressional district. Hamilton Ward Sr. (R)
 * New York's 28th congressional district. Roswell Hart (R)
 * New York's 29th congressional district. Burt Van Horn (R)
 * New York's 30th congressional district. James M. Humphrey (D)
 * New York's 31st congressional district. Henry H. Van Aernam (R)

North Carolina

 * North Carolina's 1st congressional district. Vacant
 * North Carolina's 2nd congressional district. Vacant
 * North Carolina's 3rd congressional district. Vacant
 * North Carolina's 4th congressional district. Vacant
 * North Carolina's 5th congressional district. Vacant
 * North Carolina's 6th congressional district. Vacant
 * North Carolina's 7th congressional district. Vacant

Ohio
(17–2 Republican)
 * Ohio's 1st congressional district. Benjamin Eggleston (R)
 * Ohio's 2nd congressional district. Rutherford B. Hayes (R)
 * Ohio's 3rd congressional district. Robert C. Schenck (R)
 * Ohio's 4th congressional district. William Lawrence (R)
 * Ohio's 5th congressional district. Francis C. Le Blond (D)
 * Ohio's 6th congressional district. Reader W. Clarke (R)
 * Ohio's 7th congressional district. Samuel Shellabarger (R)
 * Ohio's 8th congressional district. James R. Hubbell (R)
 * Ohio's 9th congressional district. Ralph P. Buckland (R)
 * Ohio's 10th congressional district. James M. Ashley (R)
 * Ohio's 11th congressional district. Hezekiah S. Bundy (R)
 * Ohio's 12th congressional district. William E. Finck (D)
 * Ohio's 13th congressional district. Columbus Delano (R)
 * Ohio's 14th congressional district. Martin Welker (R)
 * Ohio's 15th congressional district. Tobias A. Plants (R)
 * Ohio's 16th congressional district. John Bingham (R)
 * Ohio's 17th congressional district. Ephraim R. Eckley (R)
 * Ohio's 18th congressional district. Rufus P. Spalding (R)
 * Ohio's 19th congressional district. James A. Garfield (R)

Oregon
(1 Republican)
 * Oregon's at-large congressional district. James H. D. Henderson (R)

Pennsylvania
(15–9 Republican)
 * Pennsylvania's 1st congressional district. Samuel J. Randall (D)
 * Pennsylvania's 2nd congressional district. Charles O'Neill (R)
 * Pennsylvania's 3rd congressional district. Leonard Myers (R)
 * Pennsylvania's 4th congressional district. William D. Kelley (R)
 * Pennsylvania's 5th congressional district. M. Russell Thayer (R)
 * Pennsylvania's 6th congressional district. Benjamin M. Boyer (D)
 * Pennsylvania's 7th congressional district. John M. Broomall (R)
 * Pennsylvania's 8th congressional district. Sydenham E. Ancona (D)
 * Pennsylvania's 9th congressional district. Thaddeus Stevens (R)
 * Pennsylvania's 10th congressional district. Myer Strouse (D)
 * Pennsylvania's 11th congressional district. Philip Johnson (D), until January 29, 1867
 * Pennsylvania's 12th congressional district. Charles Denison (D)
 * Pennsylvania's 13th congressional district. Ulysses Mercur (R)
 * Pennsylvania's 14th congressional district. George F. Miller (R)
 * Pennsylvania's 15th congressional district. Adam J. Glossbrenner (D)
 * Pennsylvania's 16th congressional district. Alexander H. Coffroth (D), February 19, 1866 – July 18, 1866
 * William H. Koontz (R), from July 18, 1866
 * Pennsylvania's 17th congressional district. Abraham A. Barker (R)
 * Pennsylvania's 18th congressional district. Stephen F. Wilson (R)
 * Pennsylvania's 19th congressional district. Glenni W. Scofield (R)
 * Pennsylvania's 20th congressional district. Charles V. Culver (R)
 * Pennsylvania's 21st congressional district. John L. Dawson (D)
 * Pennsylvania's 22nd congressional district. James K. Moorhead (R)
 * Pennsylvania's 23rd congressional district. Thomas Williams (R)
 * Pennsylvania's 24th congressional district. George V. Lawrence (R)

Rhode Island
(2 Republicans)
 * Rhode Island's 1st congressional district. Thomas A. Jenckes (R)
 * Rhode Island's 2nd congressional district. Nathan F. Dixon Jr. (R)

South Carolina

 * South Carolina's 1st congressional district. Vacant
 * South Carolina's 2nd congressional district. Vacant
 * South Carolina's 3rd congressional district. Vacant
 * South Carolina's 4th congressional district. Vacant

Tennessee
(4 Unconditional Unionists; 4 Unionists)
 * Tennessee's 1st congressional district. Nathaniel G. Taylor (U), from July 24, 1866
 * Tennessee's 2nd congressional district. Horace Maynard (UU), from July 24, 1866
 * Tennessee's 3rd congressional district. William B. Stokes (UU), from July 24, 1866
 * Tennessee's 4th congressional district. Edmund Cooper (U), from July 24, 1866
 * Tennessee's 5th congressional district. William B. Campbell (U), from July 24, 1866
 * Tennessee's 6th congressional district. Samuel M. Arnell (UU), from July 24, 1866
 * Tennessee's 7th congressional district. Isaac R. Hawkins (U), from July 24, 1866
 * Tennessee's 8th congressional district. John W. Leftwich (UU), from July 24, 1866

Texas

 * Texas's 1st congressional district. Vacant
 * Texas's 2nd congressional district. Vacant
 * Texas's 3rd congressional district. Vacant
 * Texas's 4th congressional district. Vacant

Vermont
(3 Republicans)
 * Vermont's 1st congressional district. Frederick E. Woodbridge (R)
 * Vermont's 2nd congressional district. Justin S. Morrill (R)
 * Vermont's 3rd congressional district. Portus Baxter (R)

Virginia

 * Virginia's 1st congressional district. Vacant
 * Virginia's 2nd congressional district. Vacant
 * Virginia's 3rd congressional district. Vacant
 * Virginia's 4th congressional district. Vacant
 * Virginia's 5th congressional district. Vacant
 * Virginia's 6th congressional district. Vacant
 * Virginia's 7th congressional district. Vacant
 * Virginia's 8th congressional district. Vacant

West Virginia
(3 Unconditional Unionists)
 * West Virginia's 1st congressional district. Chester D. Hubbard (UU)
 * West Virginia's 2nd congressional district. George R. Latham (UU)
 * West Virginia's 3rd congressional district. Kellian Whaley (UU)

Wisconsin
(5–1 Republican)
 * Wisconsin's 1st congressional district. Halbert E. Paine (R)
 * Wisconsin's 2nd congressional district. Ithamar C. Sloan (R)
 * Wisconsin's 3rd congressional district. Amasa Cobb (R)
 * Wisconsin's 4th congressional district. Charles A. Eldredge (D)
 * Wisconsin's 5th congressional district. Philetus Sawyer (R)
 * Wisconsin's 6th congressional district. Walter D. McIndoe (R)

Non-voting members
(6–3 Republican)
 * Arizona Territory's at-large congressional district. John N. Goodwin (R)
 * Colorado Territory's at-large congressional district. Allen A. Bradford (R)
 * Dakota Territory's at-large congressional district. Walter A. Burleigh (R)
 * Idaho Territory's at-large congressional district. Edward D. Holbrook (D)
 * Montana Territory's at-large congressional district. Samuel McLean (D)
 * Nebraska Territory's at-large congressional district. Phineas W. Hitchcock (R), until March 1, 1867
 * New Mexico Territory's at-large congressional district. J. Francisco Chaves (R)
 * Utah Territory's at-large congressional district. William H. Hooper (D)
 * Washington Territory's at-large congressional district. Arthur A. Denny (R)

[[Image:39 us house membership.png|thumb|300px| Schuyler Colfax, photo portrait seated, c1855-1865.jpg]]

Changes in membership
The count below reflects changes from the beginning of the first session of this Congress.

Senate

 * Replacements: 8
 * Democratic: 2-seat net loss
 * Republican: 2-seat net gain
 * Unionist: no net change
 * Unconditional Union: no net change
 * Deaths: 4
 * Resignations: 2
 * Vacancy: 1
 * Seats of newly admitted states: 2
 * Seats of re-admitted states: 2
 * Total seats with changes: 12


 * Maryland (3)
 * Vacant
 * Sen. Thomas Hicks had died during previous congress. Successor elected March 9, 1865.
 * nowrap | John Creswell (UU)
 * March 9, 1865
 * March 9, 1865


 * New Jersey (2)
 * Vacant
 * Although elected in time for this Congress, the Senator-elect was not seated until March 15, 1865. Senator was later removed in election dispute, see below.
 * nowrap | John P. Stockton (D)
 * March 15, 1865
 * March 15, 1865


 * Tennessee (2)
 * rowspan=2 | Vacant
 * rowspan=2 | Tennessee re-admitted to the Union. Senators were elected July 24, 1866.
 * nowrap | Joseph S. Fowler (U)
 * July 24, 1866
 * July 24, 1866


 * Tennessee (1)
 * nowrap | David T. Patterson (U)
 * July 28, 1866
 * July 28, 1866


 * Iowa (3)
 * nowrap | James Harlan (R)
 * Resigned May 15, 1865, after being appointed U.S. Secretary of the Interior. Successor elected January 13, 1866.
 * nowrap | Samuel J. Kirkwood (R)
 * January 13, 1866
 * January 13, 1866


 * Vermont (3)
 * nowrap | Jacob Collamer (R)
 * Died November 9, 1865. Successor was appointed November 21, 1865, to continue the term. Appointee was elected October 24, 1866, to finish the term.
 * nowrap | Luke P. Poland (R)
 * November 21, 1865
 * November 21, 1865


 * New Jersey (2)
 * nowrap | John P. Stockton (D)
 * Disputed election led to Senate vacating the seat March 27, 1866. Successor elected September 19, 1866.
 * nowrap | Alexander G. Cattell (R)
 * September 19, 1866
 * September 19, 1866


 * Vermont (1)
 * nowrap | Solomon Foot (R)
 * Died March 28, 1866. Successor was appointed April 3, 1866, to continue the term. Appointee was elected October 24, 1866, to finish the term.
 * nowrap | George F. Edmunds (R)
 * April 3, 1866
 * April 3, 1866


 * Kansas (2)
 * nowrap | Jim Lane (R)
 * Died July 11, 1866, after being mortally wounded from a self-inflicted gunshot 10 days earlier Successor was appointed July 19, 1866, to continue the term. Appointee was elected January 23, 1867, to finish the term.
 * nowrap | Edmund G. Ross (R)
 * July 19, 1866
 * July 19, 1866


 * New Hampshire (3)
 * nowrap | Daniel Clark (R)
 * Resigned July 27, 1866, after being appointed Judge of the U.S. District Court for the District of New Hampshire. Successor was appointed August 31, 1866.
 * nowrap | George G. Fogg (R)
 * August 31, 1866
 * August 31, 1866


 * New Jersey (1)
 * nowrap | William Wright (D)
 * Died November 1, 1866. Successor was appointed November 12, 1866. Appointee was elected January 23, 1867, to finish the term.
 * nowrap | Frederick T. Frelinghuysen (R)
 * November 12, 1866
 * November 12, 1866


 * Nebraska (1)
 * rowspan=2 | New seat
 * rowspan=2 | Nebraska admitted to the Union March 1, 1867.
 * nowrap | Thomas Tipton (R)
 * rowspan=2 | March 1, 1867
 * rowspan=2 | March 1, 1867


 * Nebraska (2)
 * nowrap | John M. Thayer (R)
 * }
 * }

House of Representatives

 * Replacements: 9
 * Democratic: 1-seat net gain
 * Republican: 2-seat net gain
 * Unconditional Unionist: 1 seat net loss
 * Unionist: 0 net change
 * Deaths: 4
 * Resignations: 4
 * Contested election: 3
 * Seats from newly admitted states: 1
 * Seats from re-admitted states: 8
 * Total seats with changes: 21


 * Tennessee's 1st congressional district
 * rowspan=8 | Vacant
 * rowspan=8  | Tennessee re-admitted into the Union
 * nowrap | Nathaniel G. Taylor (U)
 * rowspan=8 | July 24, 1866
 * Tennessee's 2nd congressional district
 * nowrap | Horace Maynard (UU)
 * Tennessee's 3rd congressional district
 * nowrap | William B. Stokes (UU)
 * Tennessee's 4th congressional district
 * nowrap | Edmund Cooper (U)
 * Tennessee's 5th congressional district
 * nowrap | William B. Campbell (U)
 * Tennessee's 6th congressional district
 * nowrap | Samuel M. Arnell (UU)
 * Tennessee's 7th congressional district
 * nowrap | Isaac R. Hawkins (U)
 * Tennessee's 8th congressional district
 * nowrap | John W. Leftwich (UU)
 * Maryland's 2nd congressional district
 * nowrap | Edwin H. Webster (UU)
 * Resigned some time in July, 1865 after being appointed Collector of Customs for the port of Baltimore
 * nowrap | John L. Thomas Jr. (UU)
 * December 4, 1865
 * New York's 16th congressional district
 * nowrap | Orlando Kellogg (R)
 * Died August 24, 1865
 * nowrap | Robert S. Hale (R)
 * December 3, 1865
 * Massachusetts's 6th congressional district
 * nowrap | Daniel W. Gooch (R)
 * Resigned September 1, 1865, after being appointed Navy Agent for the port of Boston
 * nowrap | Nathaniel P. Banks (R)
 * December 4, 1865
 * Pennsylvania's 16th congressional district
 * Vacant
 * incumbent Coffroth prevented from taking seat due to election contest
 * nowrap | Alexander H. Coffroth (D)
 * February 19, 1866
 * Pennsylvania's 16th congressional district
 * nowrap | Alexander H. Coffroth (D)
 * Lost contested election July 18, 1866
 * nowrap | William H. Koontz (R)
 * July 18, 1866
 * Indiana's 7th congressional district
 * nowrap | Daniel W. Voorhees (D)
 * Lost contested election February 23, 1866
 * nowrap | Henry D. Washburn (R)
 * February 23, 1866
 * New York's 8th congressional district
 * nowrap | James Brooks (D)
 * Lost contested election April 7, 1866
 * nowrap | William E. Dodge (R)
 * April 7, 1866
 * New York's 3rd congressional district
 * nowrap | James Humphrey (R)
 * Died June 16, 1866
 * nowrap | John W. Hunter (D)
 * December 4, 1866
 * Kentucky's 6th congressional district
 * nowrap | Green C. Smith (UU)
 * Resigned some time in July, 1866 after being appointed Governor of the Montana Territory.
 * nowrap | Andrew H. Ward (D)
 * December 3, 1866
 * Kentucky's 5th congressional district
 * nowrap | Lovell Rousseau (UU)
 * Resigned July 21, 1866, after being reprimanded for his assault of Iowa Rep. Josiah B. Grinnell. Was re-elected to fill his own seat.
 * nowrap | Lovell Rousseau (UU)
 * December 3, 1866
 * Kentucky's 3rd congressional district
 * nowrap | Henry Grider (D)
 * Died September 7, 1866
 * nowrap | Elijah Hise (D)
 * December 3, 1866
 * Pennsylvania's 11th congressional district
 * nowrap | Philip Johnson (D)
 * Died January 29, 1867
 * Vacant
 * Not filled this term
 * Nebraska Territory's at-large congressional district
 * nowrap | Phineas Hitchcock (R)
 * Nebraska achieved statehood March 1, 1867
 * colspan=2 | District eliminated
 * Nebraska's at-large congressional district
 * New State
 * Nebraska admitted to the Union March 1, 1867. Seat remained vacant until March 2, 1867
 * nowrap | Turner M. Marquette (R)
 * March 2, 1867
 * }
 * nowrap | Henry Grider (D)
 * Died September 7, 1866
 * nowrap | Elijah Hise (D)
 * December 3, 1866
 * Pennsylvania's 11th congressional district
 * nowrap | Philip Johnson (D)
 * Died January 29, 1867
 * Vacant
 * Not filled this term
 * Nebraska Territory's at-large congressional district
 * nowrap | Phineas Hitchcock (R)
 * Nebraska achieved statehood March 1, 1867
 * colspan=2 | District eliminated
 * Nebraska's at-large congressional district
 * New State
 * Nebraska admitted to the Union March 1, 1867. Seat remained vacant until March 2, 1867
 * nowrap | Turner M. Marquette (R)
 * March 2, 1867
 * }
 * nowrap | Turner M. Marquette (R)
 * March 2, 1867
 * }

Senate

 * Agriculture (Chairman: John Sherman)
 * Audit and Control the Contingent Expenses of the Senate (Chairman: George H. Williams)
 * Claims (Chairman: Timothy O. Howe)
 * Coins, Weights and Measures (Select)
 * Commerce (Chairman: Zachariah Chandler)
 * Compensation (Select)
 * Distributing Public Revenue Among the States (Select)
 * District of Columbia (Chairman: Lot M. Morrill)
 * Engrossed Bills (Chairman: Aaron H. Cragin)
 * Finance (Chairman: William P. Fessenden)
 * Foreign Relations (Chairman: Charles Sumner)
 * Indian Affairs (Chairman: John B. Henderson)
 * Interior Department Clerical Force (Select)
 * Judiciary (Chairman: Lyman Trumbull)
 * Manufactures (Chairman: William Sprague IV)
 * Military Affairs and the Militia (Chairman: Henry Wilson)
 * Mines and Mining (Chairman: John Conness)
 * Mississippi River Levees Reconstruction (Select)
 * National Banks (Select)
 * National Telegraph Company (Select)
 * Naval Affairs (Chairman: James W. Grimes)
 * Ordnance and War Ships (Select)
 * Pacific Railroad (Chairman: Jacob M. Howard)
 * Patents and the Patent Office (Chairman: Waitman T. Willey)
 * Pensions (Chairman: Henry S. Lane)
 * Post Office and Post Roads (Chairman: Alexander Ramsey)
 * Private Land Claims (Chairman: Ira Harris)
 * Public Buildings and Grounds (Chairman: B. Gratz Brown)
 * Public Lands (Chairman: Samuel C. Pomeroy)
 * Retrenchment
 * Revolutionary Claims (Chairman: Richard Yates)
 * Tariff Regulation (Select)
 * Territories (Chairman: Benjamin F. Wade)
 * Whole

House of Representatives

 * Accounts (Chairman: Edward H. Rollins)
 * Agriculture (Chairman: John Bidwell)
 * Appropriations (Chairman: Thaddeus Stevens)
 * Banking and Currency (Chairman: Theodore M. Pomeroy)
 * Claims (Chairman: Columbus Delano)
 * Coinage, Weights and Measures (Chairman: John A. Kasson)
 * Commerce (Chairman: Elihu B. Washburne)
 * District of Columbia (Chairman: Ebon C. Ingersoll)
 * Elections (Chairman: Henry L. Dawes)
 * Expenditures in the Interior Department (Chairman: Ebenezer Dumont)
 * Expenditures in the Navy Department (Chairman: George W. Julian)
 * Expenditures in the Post Office Department (Chairman: Jehu Baker)
 * Expenditures in the State Department (Chairman: Frederick A. Pike)
 * Expenditures in the Treasury Department (Chairman: James M. Marvin)
 * Expenditures in the War Department (Chairman: Henry C. Deming)
 * Expenditures on Public Buildings (Chairman: John W. Longyear)
 * Foreign Affairs (Chairman: Nathaniel P. Banks)
 * Freedmen's Affairs (Chairman: Thomas D. Eliot)
 * Indian Affairs (Chairman: William Windom)
 * Invalid Pensions (Chairman: Sidney Perham)
 * Judiciary (Chairman: James F. Wilson)
 * Manufactures (Chairman: James K. Moorhead)
 * Mileage (Chairman: George W. Anderson)
 * Military Affairs (Chairman: Robert C. Schenck)
 * Militia (Chairman: Abner C. Harding)
 * Mines and Mining (Chairman: William Higby)
 * Naval Affairs (Chairman: Alexander H. Rice)
 * Pacific Railroads (Chairman: Hiram Price)
 * Patents (Chairman: Thomas A. Jenckes)
 * Post Office and Post Roads (Chairman: John B. Alley)
 * Public Buildings and Grounds (Chairman: John H. Rice)
 * Public Expenditures (Chairman: Calvin T. Hulburd)
 * Public Lands (Chairman: George W. Julian)
 * Revisal and Unfinished Business (Chairman: Glenni W. Scofield)
 * Revolutionary Claims (Chairman: Kellian V. Whaley)
 * Revolutionary Pensions (Chairman: Walter D. McIndoe)
 * Roads and Canals (Chairman: Fernando C. Beaman)
 * Rules (Select)
 * Standards of Official Conduct
 * Territories (Chairman: James M. Ashley)
 * Ways and Means (Chairman: Justin S. Morrill)
 * Whole

Joint committees

 * Conditions of Indian Tribes (Special)
 * Conduct of the War
 * Enrolled Bills (Chairman: Sen. James Nye)
 * The Library (Chairman: N/A)
 * Printing (Chairman: N/A)
 * Retrenchment
 * To Inquire into the Condition of the States which Formed the So-Called Confederate States

Caucuses

 * Democratic (House)
 * Democratic (Senate)

Legislative branch agency directors

 * Architect of the Capitol: Thomas U. Walter, resigned May 26, 1865
 * Edward Clark, appointed August 30, 1865
 * Librarian of Congress: Ainsworth Rand Spofford

Senate

 * Chaplain: Thomas Bowman (Methodist), until March 9, 1865
 * Edgar H. Gray (Baptist), from March 9, 1865
 * Secretary: John W. Forney
 * Sergeant at Arms: George T. Brown

House of Representatives

 * Chaplain: William Henry Channing (Unitarian), until December 4, 1865
 * Charles B. Boynton (Congregationalist), from December 4, 1865
 * Clerk: Edward McPherson
 * Doorkeeper: Ira Goodnow
 * Messenger to the Speaker: William D. Todd
 * Postmaster: Josiah Given
 * Reading Clerks: Edward W. Barber
 * Sergeant at Arms: Nehemiah G. Ordway

Transcripts of debates and proceedings
The Congressional Globe contains the official transcripts and proceedings of the Thirty-Ninth Congress, although newspapers often provided their own transcripts that sometimes differed from the official ones. Following are external links to the pertinent volumes of the Globe, which are downloadable and/or searchable via Google Books and HathiTrust: The congressional debates pertaining to the Fourteenth Amendment can be found at “Congressional Debates of the Fourteenth Amendment to the United States Constitution”.