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.
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
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
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
During this congress, two Senate seats was added for the new state of Wisconsin.
During this congress, two House seats were added for the new state of Wisconsin.
President: George M. Dallas (D)
President pro tempore: David R. Atchison (D)
Speaker: Robert C. Winthrop (W)
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
The names of members of the House of Representatives are preceded by their district numbers.
The count below reflects changes from the beginning of the first session of this Congress.
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
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
Lists of committees and their party leaders.
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)
Finance
Foreign Relations
Indian Affairs
Judiciary
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
Accounts
Agriculture
Claims
Commerce
District of Columbia
Elections
Engraving
Expenditures in the Navy Department
Expenditures in the Post Office Department
Expenditures in the State Department
Expenditures in the Treasury Department
Expenditures in the War Department
Expenditures on Public Buildings
Foreign Affairs
Indian Affairs
Invalid Pensions
Manufactures
Mileage
Military Affairs
Militia
Naval Affairs
Patents
Post Office and Post Roads
Public Buildings and Grounds
Public Expenditures
Public Lands
Revisal and Unfinished Business
Revolutionary Claims
Roads and Canals
Rules (Select)
Standards of Official Conduct
Territories
Ways and Means
Whole
Enrolled Bills
Librarian of Congress: John Silva Meehan
Chaplain: Henry Slicer (Methodist)
Secretary: Asbury Dickens
Sergeant at Arms: Robert Beale
Chaplain Ralph Gurley (Presbyterian)
Clerk: Thomas J. Campbell
Doorkeeper: Robert E. Horner
Postmaster: John M. Johnson
Sergeant at Arms: Nathan Sergeant
