30th United States Congress

30th United States Congress
29th ← → 31st
United States Capitol (1846)
March 4, 1847 – March 4, 1849
Members	60 senators 230 representatives 2 non-voting delegates
Senate majority	Democratic
Senate President	George M. Dallas (D)
House majority	Whig
House Speaker	Robert C. Winthrop (W)
Sessions
1st: December 6, 1847 – August 14, 1848 2nd: December 4, 1848 – March 3, 1849

The Thirtieth 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, 1847 to March 4, 1849, during the last two years of the administration of President James K. Polk. The apportionment of seats in the House of Representatives was based on the Sixth Census of the United States in 1840. The Senate had a Democratic majority, and the House had a Whig majority. It was the only Congress in which Abraham Lincoln served.

Major events

Sutter's Mill, origin of the California Gold Rush

Main articles: 1847 in the United States, 1848 in the United States, and 1849 in the United States

• July 1, 1847: United States issued its first postage stamps
• January 24, 1848: Gold found at Sutter's Mill, beginning the California Gold Rush
• January 31, 1848: Washington Monument established
• July 19, 1848: Seneca Falls Convention
• November 7, 1848: U.S. presidential election, 1848: Whig Zachary Taylor defeated Lewis Cass in the first US presidential election held in every state on the same day.
• 1846–1848: Mexican-American War

Major legislation

Main article: Major legislation: 30th United States Congress

• March 3, 1849: United States Department of the Interior established, sess. 2, ch. 108, 9 Stat. 395
• March 3, 1849: Gold Coinage Act, sess. 2, ch. 109, 9 Stat. 397

Treaty

Mapa de los Estados Unidos de Méjico by John Distrunell: the 1847 map used during negotiations of the Treaty of Guadalupe Hidalgo.

• February 2, 1848: Treaty of Guadalupe Hidalgo signed, ending the Mexican–American War and ceding to the United States virtually all of what is today the southwest United States.

States admitted and territories established

• May 29, 1848: Wisconsin admitted as the 30th U.S. state, sess. 1, ch. 50, 9 Stat. 235
• August 14, 1848: Oregon Territory was formed from territory ceded by Great Britain and others.
• March 3, 1849: Minnesota Territory formed from the Wisconsin Territory, sess. 2, ch. 121, 9 Stat. 403

Party summary

Senate

During this congress, two Senate seats was added for the new state of Wisconsin.

	Party (shading shows control)				Total	Vacant
	Democratic (D)	Independent Democratic (ID)	Whig (W)	Other
End of previous congress	31	0	24	1	56	2
Begin	33	1	20	0	54	2
End	38		21		60	0
Final voting share	63.3%	1.7%	35.0%	0.0%
Beginning of next congress	33	0	25	0	58	2

House of Representatives

House seats by party holding plurality in state
80+ – 100% Democratic	80+ – 100% Whig
60+ – 80% Democratic	60+ – 80% Whig
Up to 60% Democratic	Up to 60% Whig

During this congress, two House seats were added for the new state of Wisconsin.

Affiliation	Party (Shading indicates plurality caucus)					Total
	American (Know-nothing) (A)	Democratic (D)	Independent Democratic (ID)	Whig (W)	Independent (I)		Vacant
End of previous Congress	12	137	0	77	0	226	2
Begin	1	107	2	116	1	227	1
End		110	3	115		230	0
Final voting share	0.4%	47.8%	1.3%	50.0%	0.4%
Beginning of next Congress	1	113	0	107	0	230	1

Leadership

President of the Senate
George M. Dallas

Senate

• President: George M. Dallas (D)
• President pro tempore: David R. Atchison (D)

House of Representatives

• Speaker: Robert C. Winthrop (W)

Members

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

Skip to House of Representatives, below

Senate

Alabama

• 3. Arthur P. Bagby (D), until June 16, 1848
  • William R. D. King (D), from July 1, 1848
• 2. Dixon H. Lewis (D), until October 25, 1848
  • Benjamin Fitzpatrick (D), from November 25, 1848

Arkansas

• 3. Ambrose H. Sevier (D), until March 15, 1848
  • Solon Borland (D), from March 30, 1848
• 2. Chester Ashley (D), until April 29, 1848
  • William K. Sebastian (D), from May 12, 1848

Connecticut

• 1. Jabez W. Huntington (W), until November 1, 1847
  • Roger S. Baldwin (W), from November 11, 1847
• 3. John M. Niles (D)

Delaware

• 1. John M. Clayton (W), until February 23, 1849
  • John Wales (W), from February 23, 1849
• 2. Presley Spruance (W)

Florida

• 1. David Levy Yulee (D)
• 3. James D. Westcott, Jr. (D)

Georgia

• 3. Walter T. Colquitt (D), until February 4, 1848
  • Herschel V. Johnson (D), from February 4, 1848
• 2. John Macpherson Berrien (W)

Illinois

• 3. Sidney Breese (D)
• 2. Stephen A. Douglas (D)

Indiana

• 3. Edward A. Hannegan (D)
• 1. Jesse D. Bright (D)

Iowa

• 3. Augustus C. Dodge (D), from December 7, 1848
• 2. George W. Jones (D), from December 7, 1848

Kentucky

• 3. John J. Crittenden (W), until June 12, 1848
  • Thomas Metcalfe (W), from June 23, 1848
• 2. Joseph R. Underwood (W)

Louisiana

• 3. Henry Johnson (W)
• 2. Solomon W. Downs (D)

Maine

• 1. John Fairfield (D), until December 24, 1847
  • Wyman B. S. Moor (D), from January 5, 1848 until June 7, 1848
  • Hannibal Hamlin (D), from June 7, 1848
• 2. James W. Bradbury (D)

Maryland

• 3. James Pearce (W)
• 1. Reverdy Johnson (W)

Massachusetts

• 1. Daniel Webster (W)
• 2. John Davis (W)

Michigan

• 1. Lewis Cass (D), until May 29, 1848
  • Thomas Fitzgerald (D), from June 8, 1848
• 2. Alpheus Felch (D)

Mississippi

• 1. Jesse Speight (D), until May 1, 1847
  • Jefferson Davis (D), from August 10, 1847
• 2. Henry S. Foote (D)

Missouri

• 1. Thomas H. Benton (D)
• 3. David R. Atchison (D)

New Hampshire

• 3. Charles G. Atherton (D)
• 2. John P. Hale (ID)

New Jersey

• 2. Jacob W. Miller (W)
• 1. William L. Dayton (W)

New York

• 1. Daniel S. Dickinson (D)
• 3. John A. Dix (D)

North Carolina

• 2. Willie P. Mangum (W)
• 3. George E. Badger (W)

Ohio

• 3. William Allen (D)
• 1. Thomas Corwin (W)

Pennsylvania

• 1. Daniel Sturgeon (D)
• 3. Simon Cameron (D)

Rhode Island

• 1. Albert C. Greene (W)
• 2. John H. Clarke (W)

South Carolina

• 2. John C. Calhoun (D)
• 3. Andrew Butler (D)

Tennessee

• 1. Hopkins L. Turney (D)
• 2. John Bell (W), from November 22, 1847

Texas

• 2. Samuel Houston (D), from December 18, 1847.
• 1. Thomas J. Rusk (D)

Vermont

• 1. Samuel S. Phelps (W)
• 3. William Upham (W)

Virginia

• 1. James M. Mason (D)
• 2. Robert M. T. Hunter (D)

Wisconsin

• 1. Henry Dodge (D), from June 8, 1848 (newly admitted state)
• 3. Isaac P. Walker (D), from June 8, 1848 (newly admitted state)

Senate President pro tempore
David R. Atchison

House of Representatives

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

Alabama

(5 Democrats, 2 Whigs)

• 1. John Gayle (W)
• 2. Henry W. Hilliard (W)
• 3. Sampson W. Harris (D)
• 4. Samuel W. Inge (D)
• 5. George S. Houston (D)
• 6. Williamson R. W. Cobb (D)
• 7. Franklin W. Bowdon (D)

Arkansas

(1 Democrat)

• At-large. Robert W. Johnson (D)

Connecticut

(4 Whigs)

• 1. James Dixon (W)
• 2. Samuel D. Hubbard (W)
• 3. John A. Rockwell (W)
• 4. Truman Smith (W)

Delaware

(1 Whig)

• At-large. John W. Houston (W)

Florida

(1 Whig)

• At-large. Edward C. Cabell (W)

Georgia

(4 Democrats, 4 Whigs)

• 1. Thomas B. King (W)
• 2. Alfred Iverson, Sr. (D)
• 3. John W. Jones (W)
• 4. Hugh A. Haralson (D)
• 5. John H. Lumpkin (D)
• 6. Howell Cobb (D)
• 7. Alexander Stephens (W)
• 8. Robert Toombs (W)

Illinois

(6 Democrats, 1 Whig)

• 1. Robert Smith (ID)
• 2. John A. McClernand (D)
• 3. Orlando B. Ficklin (D)
• 4. John Wentworth (D)
• 5. William A. Richardson (D), from December 6, 1847
• 6. Thomas J. Turner (D)
• 7. Abraham Lincoln (W)

Indiana

(6 Democrats, 4 Whigs)

• 1. Elisha Embree (W)
• 2. Thomas J. Henley (D)
• 3. John L. Robinson (D)
• 4. Caleb B. Smith (W)
• 5. William W. Wick (D)
• 6. George G. Dunn (W)
• 7. Richard W. Thompson (W)
• 8. John Pettit (D)
• 9. Charles W. Cathcart (D)
• 10. William R. Rockhill (D)

Iowa

(2 Democrats)

• 1. William Thompson (D)
• 2. Shepherd Leffler (D)

Kentucky

(6 Whigs, 4 Democrats)

• 1. Linn Boyd (D)
• 2. Beverly L. Clarke (D)
• 3. Samuel Peyton (D)
• 4. Aylette Buckner (W)
• 5. John B. Thompson (W)
• 6. Green Adams (W)
• 7. W. Garnett Duncan (W)
• 8. Charles S. Morehead (W)
• 9. Richard French (D)
• 10. John P. Gaines (W)

Louisiana

(3 Democrats, 1 Whig)

• 1. Emile La Sére (D)
• 2. Bannon G. Thibodeaux (W)
• 3. John H. Harmanson (D)
• 4. Isaac E. Morse (D)

Maine

(6 Democrats, 1 Whig)

• 1. David Hammons (D)
• 2. Asa W. H. Clapp (D)
• 3. Hiram Belcher (W)
• 4. Franklin Clark (D)
• 5. Ephraim K. Smart (D)
• 6. James S. Wiley (D)
• 7. Hezekiah Williams (D)

Maryland

(4 Whigs, 2 Democrats)

• 1. John G. Chapman (W)
• 2. J. Dixon Roman (W)
• 3. Thomas W. Ligon (D)
• 4. Robert M. McLane (D)
• 5. Alexander Evans (W)
• 6. John W. Crisfield (W)

Massachusetts

(10 Democrats)

• 1. Robert C. Winthrop (W)
• 2. Daniel P. King (W)
• 3. Amos Abbott (W)
• 4. John G. Palfrey (W)
• 5. Charles Hudson (W)
• 6. George Ashmun (W)
• 7. Julius Rockwell (W)
• 8. John Quincy Adams (W), until February 23, 1848
  • Horace Mann (W), from April 3, 1848
• 9. Artemas Hale (W)
• 10. Joseph Grinnell (W)

Michigan

(3 Democrats)

• 1. Robert McClelland (D)
• 2. Edward Bradley (D), until August 5, 1847
  • Charles E. Stuart (D), from December 6, 1847
• 3. Kinsley S. Bingham (D)

Mississippi

(3 Democrats, 1 Whig)

• 1. Jacob Thompson (D)
• 2. Winfield S. Featherston (D)
• 3. Patrick W. Tompkins (W)
• 4. Albert G. Brown (D)

Missouri

(5 Democrats)

• 1. James B. Bowlin (D)
• 2. John Jameson (D)
• 3. James S. Green (D)
• 4. Willard P. Hall (D)
• 5. John S. Phelps (D)

New Hampshire

(2 Democrats, 1 Whig, 1 Independent)

• 1. Amos Tuck (I)
• 2. Charles H. Peaslee (D)
• 3. James Wilson (W)
• 4. James H. Johnson (D)

New Jersey

(4 Whigs, 1 Democrat)

• 1. James G. Hampton (W)
• 2. William A. Newell (W)
• 3. Joseph E. Edsall (D)
• 4. John Van Dyke (W)
• 5. Dudley S. Gregory (W)

New York

(23 Whigs, 10 Democrats)

• 1. Frederick W. Lord (D)
• 2. Henry C. Murphy (D)
• 3. Henry Nicoll (D)
• 4. William B. Maclay (D)
• 5. Frederick A. Tallmadge (W)
• 6. David S. Jackson (D), until April 19, 1848
  • Horace Greeley (W), from December 4, 1848
• 7. William Nelson (W)
• 8. Cornelius Warren (W)
• 9. Daniel B. St. John (W)
• 10. Eliakim Sherrill (W)
• 11. Peter H. Silvester (W)
• 12. Gideon Reynolds (W)
• 13. John I. Slingerland (W)
• 14. Orlando Kellogg (W)
• 15. Sidney Lawrence (D)
• 16. Hugh White (W)
• 17. George Petrie (ID)
• 18. William Collins (D)
• 19. Joseph Mullin (W)
• 20. Timothy Jenkins (D)
• 21. George A. Starkweather (D)
• 22. Ausburn Birdsall (D)
• 23. William Duer (W)
• 24. Daniel Gott (W)
• 25. Harmon S. Conger (W)
• 26. William T. Lawrence (W)
• 27. John M. Holley (W), until March 8, 1848
  • Esbon Blackmar (W), from December 4, 1848
• 28. Elias B. Holmes (W)
• 29. Robert L. Rose (W)
• 30. David Rumsey, Jr. (W)
• 31. Dudley Marvin (W)
• 32. Nathan K. Hall (W)
• 33. Harvey Putnam (W)
• 34. Washington Hunt (W)

North Carolina

(6 Whigs, 3 Democrats)

• 1. Thomas L. Clingman (W)
• 2. Nathaniel Boyden (W)
• 3. Daniel M. Barringer (W)
• 4. Augustine H. Shepperd (W)
• 5. Abraham W. Venable (D)
• 6. John R. J. Daniel (D)
• 7. James I. McKay (D)
• 8. Richard S. Donnell (W)
• 9. David Outlaw (W)

Ohio

(11 Whigs, 10 Democrats)

• 1. James J. Faran (D)
• 2. David Fisher (W)
• 3. Robert C. Schenck (W)
• 4. Richard S. Canby (W)
• 5. William Sawyer (D)
• 6. Rodolphus Dickinson (D)
• 7. Jonathan D. Morris (D)
• 8. John L. Taylor (W)
• 9. Thomas O. Edwards (W)
• 10. Daniel Duncan (W)
• 11. John K. Miller (D)
• 12. Samuel F. Vinton (W)
• 13. Thomas Ritchey (D)
• 14. Nathan Evans (W)
• 15. William Kennon, Jr. (D)
• 16. John D. Cummins (D)
• 17. George Fries (D)
• 18. Samuel Lahm (D)
• 19. John Crowell (W)
• 20. Joshua R. Giddings (W)
• 21. Joseph M. Root (W)

Pennsylvania

(15 Whigs, 7 Democrats)

• 1. Lewis C. Levin (A)
• 2. Joseph R. Ingersoll (W)
• 3. Charles Brown (D)
• 4. Charles J. Ingersoll (D)
• 5. John Freedley (W)
• 6. John W. Hornbeck (W), until January 16, 1848
  • Samuel A. Bridges (D), from March 6, 1848
• 7. Abraham R. McIlvaine (W)
• 8. John Strohm (W)
• 9. William Strong (D)
• 10. Richard Brodhead (D)
• 11. Chester P. Butler (W)
• 12. David Wilmot (D)
• 13. James Pollock (W)
• 14. George N. Eckert (W)
• 15. Henry Nes (W)
• 16. Jasper E. Brady (W)
• 17. John Blanchard (W)
• 18. Andrew Stewart (W)
• 19. Job Mann (D)
• 20. John Dickey (W)
• 21. Moses Hampton (W)
• 22. John W. Farrelly (W)
• 23. James Thompson (D)
• 24. Alexander Irvin (W)

Rhode Island

(1 Democrat, 1 Whig)

• 1. Robert B. Cranston (W)
• 2. Benjamin B. Thurston (D)

South Carolina

(7 Democrats)

• 1. James A. Black (D), until April 3, 1848
  • Daniel Wallace (D), from June 12, 1848
• 2. Richard F. Simpson (D)
• 3. Joseph A. Woodward (D)
• 4. Alexander D. Sims (D), until November 22, 1848
  • John McQueen (D), from February 12, 1849
• 5. Armistead Burt (D)
• 6. Isaac E. Holmes (D)
• 7. R. Barnwell Rhett (D)

Tennessee

(6 Democrats, 5 Whigs)

• 1. Andrew Johnson (D)
• 2. William M. Cocke (W)
• 3. John H. Crozier (W)
• 4. Hugh L. W. Hill (D)
• 5. George W. Jones (D)
• 6. James H. Thomas (D)
• 7. Meredith P. Gentry (W)
• 8. Washington Barrow (W)
• 9. Lucien B. Chase (D)
• 10. Frederick P. Stanton (D)
• 11. William T. Haskell (W)

Texas

(2 Democrats)

• 1. David S. Kaufman (D)
• 2. Timothy Pilsbury (D)

Vermont

(3 Whigs, 1 Democrats)

• 1. William Henry (W)
• 2. Jacob Collamer (W)
• 3. George P. Marsh (W)
• 4. Lucius B. Peck (D)

Virginia

(9 Democrats, 6 Whigs)

• 1. Archibald Atkinson (D)
• 2. George Dromgoole (D), until April 27, 1847
  • Richard K. Meade (D), from August 5, 1847
• 3. Thomas S. Flournoy (W)
• 4. Thomas S. Bocock (D)
• 5. William L. Goggin (W)
• 6. John Botts (W)
• 7. Thomas H. Bayly (D)
• 8. Richard L. T. Beale (D)
• 9. John Pendleton (W)
• 10. Henry Bedinger (D)
• 11. James McDowell (D)
• 12. William B. Preston (W), from November 25, 1847
• 13. Andrew S. Fulton (W)
• 14. Robert A. Thompson (D)
• 15. William G. Brown, Sr. (D)

Wisconsin

(2 Democrats)

• 1. William P. Lynde (D), from June 8, 1848 (newly admitted state)
• 2. Mason C. Darling (D), from June 8, 1848 (newly admitted state)

Non-voting members

(1 Whig)

• Wisconsin Territory. John H. Tweedy (W), until May 29, 1848
  • Henry H. Sibley, from October 30, 1848

Speaker of the House
Robert C. Winthrop

Changes in membership

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

Senate

• Replacements: 11
  • Democrats (D): 4 seat net gain
  • Whigs (W): no net change
• Deaths: 5
• Resignations: 6
• Interim appointments: 7
• Seats of newly admitted states: 4

See also: List of special elections to the United States Senate

|- | Tennessee
(2) | Vacant | Failure to elect.
Successor elected November 22, 1847. | style="background-color:#F0C862" | John Bell (W) | Elected November 22, 1847.

|- | Iowa
(2) | Vacant | Iowa had been admitted to the Union December 28, 1846, but the legislature failed to elect due to a three-way split that prevented any candidate from earning the required number of 30 legislators' votes.
First Senator elected December 7, 1848. | style="background-color:#B0CEFF" | George W. Jones (D) | Elected December 7, 1848.

|- | Iowa
(3) | Vacant | Iowa had been admitted to the Union December 28, 1846, but the legislature failed to elect due to a three-way split that prevented any candidate from earning the required number of 30 legislators' votes.
First Senator elected December 7, 1848. | style="background-color:#B0CEFF" | Augustus C. Dodge (D) | Elected December 7, 1848.

|- | Texas
(2) | Vacant | Legislature failed to elect due to a dispute over who was entitled to fill a vacancy.
Elected December 19, 1847. | style="background-color:#B0CEFF" | Samuel Houston (D) | Seated January 24, 1848.

|- | Mississippi
(1) | style="background-color:#B0CEFF" | Jesse Speight (D) | Incumbent died May 1, 1847.
Successor appointed August 10, 1847 and then elected January 1848. | style="background-color:#B0CEFF" | Jefferson Davis (D) | Appointed December 5, 1847.

|- | Connecticut
(1) | style="background-color:#F0C862" | Jabez W. Huntington (W) | Incumbent died November 1, 1847.
Successor appointed November 11, 1847 and then elected May 1848. | style="background-color:#F0C862" | Roger S. Baldwin (W) | Appointed December 5, 1847.

|- | Maine
(1) | style="background-color:#B0CEFF" | John Fairfield (D) | Incumbent died December 24, 1847.
Successor appointed January 5, 1848. | style="background-color:#B0CEFF" | Wyman B. S. Moor (D) | Appointed January 5, 1848.

|- | Georgia
(3) | style="background-color:#B0CEFF" | Walter T. Colquitt (D) | Incumbent resigned February 4, 1848.
Successor appointed February 4, 1848 to finish the term. | style="background-color:#B0CEFF" | Herschel V. Johnson (D) | Appointed February 4, 1848.

|- | Arkansas
(3) | style="background-color:#B0CEFF" | Ambrose H. Sevier (D) | Incumbent resigned March 15, 1848.
Successor appointed March 30, 1848 to finish the term. | style="background-color:#B0CEFF" | Solon Borland (D) | Appointed March 30, 1848.

|- | Arkansas
(2) | style="background-color:#B0CEFF" | Chester Ashley (D) | Incumbent died April 29, 1848.
Successor appointed May 12, 1848 and elected sometime thereafter. | style="background-color:#B0CEFF" | William K. Sebastian (D) | Elected May 12, 1848.

|- | Wisconsin
(1) | colspan=2 | Wisconsin admitted to the Union May 29, 1848.
First Senator elected June 8, 1848. | style="background-color:#B0CEFF" | Henry Dodge (D) | Elected June 8, 1848.

|- | Wisconsin
(3) | colspan=2 | Wisconsin admitted to the Union May 29, 1848.
First Senator elected June 8, 1848. | style="background-color:#B0CEFF" | Isaac P. Walker (D) | Elected June 8, 1848.

|- | Michigan
(1) | style="background-color:#B0CEFF" | Lewis Cass (D) | Incumbent resigned May 29, 1848 to run for U.S. President.
Successor appointed June 8, 1848. | style="background-color:#B0CEFF" | Thomas Fitzgerald (D) | Elected June 8, 1848.

|- | Maine
(1) | style="background-color:#B0CEFF" | Wyman B. S. Moor (D) | Interim appointee retired when successor elected June 7, 1848. | style="background-color:#B0CEFF" | Hannibal Hamlin (D) | Elected June 7, 1848.

|- | Kentucky
(3) | style="background-color:#F0C862" | John J. Crittenden (W) | Incumbent resigned June 12, 1848 to run for Governor of Kentucky.
Successor appointed June 23, 1848 and elected sometime thereafter. | style="background-color:#F0C862" | Thomas Metcalfe (W) | Elected June 23, 1848.

|- | Alabama
(3) | style="background-color:#B0CEFF" | Arthur P. Bagby (D) | Incumbent resigned June 16, 1848 to become U.S. Minister to Russia.
Successor elected July 1, 1848. | style="background-color:#B0CEFF" | William R. King (D) | Elected July 1, 1848.

|- | Alabama
(2) | style="background-color:#B0CEFF" | Dixon H. Lewis (D) | Incumbent died October 25, 1848.
Successor elected November 25, 1848. | style="background-color:#B0CEFF" | Benjamin Fitzpatrick (D) | Elected November 25, 1848.

|- | Delaware
(1) | style="background-color:#F0C862" | John M. Clayton (W) | Incumbent resigned February 23, 1849 to become U.S. Secretary of State.
Successor elected February 23, 1849. | style="background-color:#F0C862" | John Wales (W) | Elected February 23, 1849. |}

House of Representatives

• Replacements: 10
  • Democrats (D): no net change
  • Whigs (W): no net change
• Deaths: 7
• Resignations: 0
• Contested election: 1
• Seats of newly admitted states: 2
• Total seats with changes: 12

Main article: List of special elections to the United States House of Representatives

|- | Illinois 5th | Vacant | Representative Stephen A. Douglas resigned at end of previous congress. | style="background-color:#B0CEFF" | William A. Richardson (D) | Seated December 6, 1847

|- | Virginia 2nd | style="background-color:#B0CEFF" | George Dromgoole (D) | Incumbent died April 27, 1847. | style="background-color:#B0CEFF" | Richard K. Meade (D) | Seated August 5, 1847

|- | Michigan 2nd | style="background-color:#B0CEFF" | Edward Bradley (D) | Incumbent died August 5, 1847. | style="background-color:#B0CEFF" | Charles E. Stuart (D) | Seated December 6, 1847

|- | Pennsylvania 6th | style="background-color:#F0C862" | John W. Hornbeck (W) | Incumbent died January 16, 1848. | style="background-color:#B0CEFF" | Samuel A. Bridges (D) | Seated March 6, 1848

|- | Massachusetts 8th | style="background-color:#F0C862" | John Quincy Adams (W) | Incumbent died February 23, 1848. | style="background-color:#F0C862" | Horace Mann (W) | Seated April 3, 1848

|- | New York 27th | style="background-color:#F0C862" | John M. Holley (W) | Incumbent died March 8, 1848. | style="background-color:#F0C862" | Esbon Blackmar (W) | Seated December 4, 1848

|- | South Carolina 1st | style="background-color:#B0CEFF" | James A. Black (D) | Incumbent died April 3, 1848. | style="background-color:#B0CEFF" | Daniel Wallace (D) | Seated June 12, 1848

|- | New York 6th | style="background-color:#B0CEFF" | David S. Jackson (D) | James Monroe contested seat after which the House declared the seat vacant April 19, 1848. | style="background-color:#F0C862" | Horace Greeley (W) | Seated December 4, 1848

|- | Wisconsin 1st | colspan=2 | Wisconsin admitted into the Union May 29, 1848 and seat remained vacant until June 8, 1848. | style="background-color:#B0CEFF" | William P. Lynde (D) | Seated June 8, 1848

|- | Wisconsin 2nd | colspan=2 | Wisconsin admitted into the Union May 29, 1848 and seat remained vacant until June 8, 1848. | style="background-color:#B0CEFF" | Mason C. Darling (D) | Seated June 8, 1848

|- | Wisconsin Territory At-large | style="background-color:#F0C862" | John H. Tweedy (W) | Incumbent was disqualified May 29, 1848 after the portion of territory he resided in achieved statehood. | Henry H. Sibley | Seated October 30, 1848

|- | South Carolina 4th | style="background-color:#B0CEFF" | Alexander D. Sims (D) | Incumbent died November 22, 1848. | style="background-color:#B0CEFF" | John McQueen (D) | Seated February 12, 1849

|}

Committees

Lists of committees and their party leaders.

Senate

• Agriculture
• Audit and Control the Contingent Expenses of the Senate
• Claims
• Commerce
• Distributing Public Revenue Among the States (Select)
• District of Columbia
• Expedition of John C. Fremont (Select)
• Indian Affairs
• Manufactures
• Memorial of Certain Cherokee Claimants (Select)
• Military Affairs
• Militia
• Monuments to Deceased Senators (Select)
• Naval Affairs
• Oregon Railroad (Select)
• Ordnance and War Ships (Select)
• Patents and the Patent Office
• Pensions
• Post Office and Post Roads
• Printing
• Private Land Claims
• Public Buildings and Grounds
• Public Lands
• Retired List for the Army and the Navy (Select)
• Retrenchment
• Seventh Census (Select)
• Revolutionary Claims
• Rivers and Harbors Convention in Chicago (Select)
• Roads and Canals
• Tariff Bill of 1828 (Special)
• Tariff Regulation (Select)
• Territories
• Whole

House of Representatives

• Accounts
• Claims
• Commerce
• District of Columbia
• Elections
• Whole

Employees

• Librarian of Congress: John Silva Meehan

Senate

• Chaplain: Henry Slicer (Methodist)
• Secretary: Asbury Dickens
• Sergeant at Arms: Robert Beale

House of Representatives

• Chaplain Ralph Gurley (Presbyterian)
• Clerk: Thomas J. Campbell
• Doorkeeper: Robert E. Horner
• Postmaster: John M. Johnson
• Sergeant at Arms: Nathan Sergeant

See also

• United States elections, 1846 (elections leading to this Congress)
  • United States Senate elections, 1846 and 1847
  • United States House of Representatives elections, 1846
• United States elections, 1848 (elections during this Congress, leading to the next Congress)
  • United States presidential election, 1848
  • United States Senate elections, 1848 and 1849
  • United States House of Representatives elections, 1848

References

• Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.

External links

• Statutes at Large, 1789–1875
• Senate Journal, First Forty-three Sessions of Congress
• House Journal, First Forty-three Sessions of Congress
• Biographical Directory of the U.S. Congress
• U.S. House of Representatives: House History
• U.S. Senate: Statistics and Lists
• Congressional Directory for the 30th Congress, 1st Session.
• Congressional Directory for the 30th Congress, 3rd Session.