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Past officeholders — A
362 people whose surname begins with A and whose last term has ended in the record. Anybody still serving is on Who holds office.
- Abram AndrewU.S. Representative · Massachusetts's 6th districtParty: Republicanlast term ended 1937
- Adam AlexanderU.S. Representative · Tennessee's 9th districtParty: Jacksonlast term ended 1827
- Adelbert AmesU.S. Senator · MississippiParty: Republicanlast term ended 1875
- Albert AndersonU.S. Representative · Iowa's 8th districtParty: Ind. Republicanlast term ended 1889
- Albert AustinU.S. Representative · Connecticut's 4th districtParty: Republicanlast term ended 1941
- Alexander AndersonU.S. Senator · TennesseeParty: Democraticlast term ended 1841
- Alfred AllenU.S. Representative · Ohio's 2nd districtParty: Democraticlast term ended 1917
- Alva AdamsU.S. Senator · ColoradoParty: Democraticlast term ended 1941
- Amos AbbottU.S. Representative · Massachusetts's 3rd districtParty: Whiglast term ended 1849
- Amos AllenU.S. Representative · Maine's 1st districtParty: Republicanlast term ended 1911
- Aníbal Acevedo-ViláU.S. Representative · PRParty: Popular Democratlast term ended 2005
- Archibald ArringtonU.S. Representative · North Carolina's 8th districtParty: Democraticlast term ended 1845
- Archibald AtkinsonU.S. Representative · Virginia's 1st districtParty: Democraticlast term ended 1849
- Archibald AustinU.S. Representative · Virginia's 16th districtParty: Republicanlast term ended 1819
- Armstead AlexanderU.S. Representative · Missouri's 2nd districtParty: Democraticlast term ended 1885
- Arthur AleshireU.S. Representative · Ohio's 7th districtParty: Democraticlast term ended 1939
- Arthur AndrewsU.S. Representative · Alabama's 4th districtParty: Republicanlast term ended 1967
- Asa AdgateU.S. Representative · New York's 12th districtParty: Republicanlast term ended 1817
- Asa AllenU.S. Representative · Louisiana's 8th districtParty: Democraticlast term ended 1953
- August AndresenU.S. Representative · Minnesota's 1st districtParty: Republicanlast term ended 1959
- Bella AbzugU.S. Representative · New York's 20th districtParty: Democraticlast term ended 1977
- Benedict ArnoldU.S. Representative · New York's 16th districtParty: not on filelast term ended 1831
- Benjamin AdamsU.S. Representative · Massachusetts's 11th districtParty: Federalistlast term ended 1821
- Beryl AnthonyU.S. Representative · Arkansas's 4th districtParty: Democraticlast term ended 1993
- Bill ArcherU.S. Representative · Texas's 7th districtParty: Republicanlast term ended 2001
- Brad AshfordU.S. Representative · Nebraska's 2nd districtParty: Democraticlast term ended 2017
- Brockman AdamsU.S. Senator · WashingtonParty: Democraticlast term ended 1993
- Bruce AlgerU.S. Representative · Texas's 5th districtParty: Republicanlast term ended 1965
- Butler AmesU.S. Representative · Massachusetts's 5th districtParty: Republicanlast term ended 1913
- Carl AlbertU.S. Representative · Oklahoma's 3rd districtParty: Democraticlast term ended 1977
- Carl AndersonU.S. Representative · Ohio's 13th districtParty: Democraticlast term ended 1913
- Chapman AndersonU.S. Representative · Mississippi's 5th districtParty: Democraticlast term ended 1891
- Charles AbernethyU.S. Representative · North Carolina's 3rd districtParty: Democraticlast term ended 1935
- Charles AdamsU.S. Representative · Massachusetts's 3rd districtParty: Republicanlast term ended 1863
- Charles AdamsU.S. Representative · New York's 16th districtParty: Republicanlast term ended 1877
- Charles AdkinsU.S. Representative · Illinois's 19th districtParty: Republicanlast term ended 1933
- Charles AlbrightU.S. Representative · Ohio's 17th districtParty: Ind. Republican-Democratlast term ended 1857
- Charles AlbrightU.S. Representative · PennsylvaniaParty: Republicanlast term ended 1875
- Charles AllenU.S. Representative · Massachusetts's 5th districtParty: Free Soillast term ended 1853
- Charles AllenU.S. Representative · Massachusetts's 8th districtParty: Republicanlast term ended 1889
- Charles AndersonU.S. Representative · Ohio's 4th districtParty: Democraticlast term ended 1887
- Charles AndersonU.S. Representative · Missouri's 12th districtParty: Democraticlast term ended 1941
- Charles AndrewsU.S. Representative · Maine's 4th districtParty: Democraticlast term ended 1853
- Charles AndrewsU.S. Senator · FloridaParty: Democraticlast term ended 1946
- Charles AthertonU.S. Representative · New HampshireParty: Federalistlast term ended 1817
- Charles AthertonU.S. Senator · New HampshireParty: Democraticlast term ended 1853
- Chester AshleyU.S. Senator · ArkansasParty: Democraticlast term ended 1848
- Chester AtkinsU.S. Representative · Massachusetts's 5th districtParty: Democraticlast term ended 1993
- Chilton AllanU.S. Representative · Kentucky's 10th districtParty: Whiglast term ended 1837
- Clarence AllenU.S. Representative · Utah's 1st districtParty: Republicanlast term ended 1897
- Clifford AllenU.S. Representative · Tennessee's 5th districtParty: Democraticlast term ended 1979
- Clinton AndersonU.S. Senator · New MexicoParty: Democraticlast term ended 1973
- Colin Z. AllredU.S. Representative · Texas's 32nd districtParty: Democraticlast term ended 2025
- Cynthia AxneU.S. Representative · Iowa's 3rd districtParty: Democraticlast term ended 2023
- Cyrus AldrichU.S. Representative · MinnesotaParty: Republicanlast term ended 1863
- Daniel AnthonyU.S. Representative · Kansas's 1st districtParty: Republicanlast term ended 1929
- Daniel AveryU.S. Representative · New York's 20th districtParty: Republicanlast term ended 1817
- Daniel K. AkakaU.S. Senator · HawaiiParty: Democraticlast term ended 2013
- Daniel Van AukenU.S. Representative · Pennsylvania's 11th districtParty: Democraticlast term ended 1871
- David AikenU.S. Representative · South Carolina's 3rd districtParty: Democraticlast term ended 1887
- David AitkenU.S. Representative · Michigan's 6th districtParty: Republicanlast term ended 1897
- David ArmstrongU.S. Senator · MissouriParty: Democraticlast term ended 1879
- David AtchisonU.S. Senator · MissouriParty: Democraticlast term ended 1855
- David AtwoodU.S. Representative · Wisconsin's 2nd districtParty: Republicanlast term ended 1871
- David De ArmondU.S. Representative · Missouri's 6th districtParty: Democraticlast term ended 1911
- De AlexanderU.S. Representative · New York's 36th districtParty: Republicanlast term ended 1911
- Delos AshleyU.S. Representative · NevadaParty: Republicanlast term ended 1869
- Donald AlbostaU.S. Representative · Michigan's 10th districtParty: Democraticlast term ended 1985
- Douglas ApplegateU.S. Representative · Ohio's 18th districtParty: Democraticlast term ended 1995
- Edward AllenU.S. Representative · Michigan's 2nd districtParty: Republicanlast term ended 1891
- Edward AlmonU.S. Representative · Alabama's 8th districtParty: Democraticlast term ended 1935
- Edwin AdairU.S. Representative · Indiana's 4th districtParty: Republicanlast term ended 1971
- Edwin AntonyU.S. Representative · Texas's 9th districtParty: Democraticlast term ended 1893
- Eli AshmunU.S. Senator · MassachusettsParty: Federalistlast term ended 1819
- Elisha AllenU.S. Representative · Maine's 8th districtParty: Whiglast term ended 1843
- Elizabeth AndrewsU.S. Representative · Alabama's 3rd districtParty: Democraticlast term ended 1973
- Ephraim AckerU.S. Representative · Pennsylvania's 6th districtParty: Democraticlast term ended 1873
- Ernest AchesonU.S. Representative · Pennsylvania's 24th districtParty: Republicanlast term ended 1909
- Ernest AckermanU.S. Representative · New Jersey's 5th districtParty: Republicanlast term ended 1933
- Eugene AtkinsonU.S. Representative · Pennsylvania's 25th districtParty: Republicanlast term ended 1983
- Evan AlexanderU.S. Representative · North Carolina's 10th districtParty: Republicanlast term ended 1809
- Fisher AmesU.S. Representative · Massachusetts's 8th districtParty: Federalistlast term ended 1797
- Frank AnnunzioU.S. Representative · Illinois's 11th districtParty: Democraticlast term ended 1993
- Fred AandahlU.S. Representative · North DakotaParty: Republicanlast term ended 1953
- Garnett AdrainU.S. Representative · New Jersey's 3rd districtParty: Anti-Lecompton Democratlast term ended 1861
- Gary L. AckermanU.S. Representative · New York's 5th districtParty: Democraticlast term ended 2013
- George AdamsU.S. Representative · Kentucky's 9th districtParty: Democraticlast term ended 1875
- George AdamsU.S. Representative · Illinois's 4th districtParty: Republicanlast term ended 1891
- George AikenU.S. Senator · VermontParty: Republicanlast term ended 1975
- George AinslieU.S. Representative · IdahoParty: Democraticlast term ended 1883
- George AllenU.S. Senator · VirginiaParty: Republicanlast term ended 2007
- George AndersonU.S. Representative · Missouri's 9th districtParty: Republicanlast term ended 1869
- George AndersonU.S. Representative · Illinois's 12th districtParty: Democraticlast term ended 1889
- George AndrewsU.S. Representative · New York's 14th districtParty: Whiglast term ended 1851
- George AndrewsU.S. Representative · Alabama's 3rd districtParty: Democraticlast term ended 1973
- George AshmunU.S. Representative · Massachusetts's 6th districtParty: Whiglast term ended 1851
- George AtkinsonU.S. Representative · West Virginia's 1st districtParty: Republicanlast term ended 1891
- Gibson AthertonU.S. Representative · Ohio's 13th districtParty: Democraticlast term ended 1883
- Glenn AndersonU.S. Representative · California's 32nd districtParty: Democraticlast term ended 1993
- Gordon AllottU.S. Senator · ColoradoParty: Republicanlast term ended 1973
- Green AdamsU.S. Representative · Kentucky's 6th districtParty: Ind. Republican-Democratlast term ended 1861
- Harrison AtwoodU.S. Representative · Massachusetts's 10th districtParty: Republicanlast term ended 1897
- Hazel AbelU.S. Senator · NebraskaParty: Republicanlast term ended 1954
- Heman AllenU.S. Representative · VermontParty: Republicanlast term ended 1819
- Heman AllenU.S. Representative · Vermont's 4th districtParty: Whiglast term ended 1839
- Henry AdamsU.S. Representative · Wisconsin's 2nd districtParty: Republicanlast term ended 1907
- Henry AlexanderU.S. Representative · New York's 17th districtParty: Whiglast term ended 1851
- Henry AllenU.S. Representative · Kentucky's 2nd districtParty: Democraticlast term ended 1903
- Henry AllenU.S. Representative · New Jersey's 6th districtParty: Republicanlast term ended 1907
- Henry AllenU.S. Senator · KansasParty: Republicanlast term ended 1930
- Henry AnthonyU.S. Senator · Rhode IslandParty: Republicanlast term ended 1885
- Henry AplinU.S. Representative · Michigan's 10th districtParty: Republicanlast term ended 1903
- Henry ArensU.S. Representative · MinnesotaParty: Farmer-Laborlast term ended 1935
- Henry AshleyU.S. Representative · New York's 11th districtParty: Jacksonlast term ended 1827
- Henry AshurstU.S. Senator · ArizonaParty: Democraticlast term ended 1941
- Henry Van AernamU.S. Representative · New York's 33rd districtParty: Republicanlast term ended 1883
- Herman AndersenU.S. Representative · Minnesota's 7th districtParty: Republicanlast term ended 1963
- Homer AbeleU.S. Representative · Ohio's 10th districtParty: Republicanlast term ended 1965
- Homer AngellU.S. Representative · Oregon's 3rd districtParty: Republicanlast term ended 1955
- Hugh AddonizioU.S. Representative · New Jersey's 11th districtParty: Democraticlast term ended 1963
- Hugh AlexanderU.S. Representative · North Carolina's 9th districtParty: Democraticlast term ended 1963
- Hugh AndersonU.S. Representative · Maine's 6th districtParty: Democraticlast term ended 1841
- Ike AndrewsU.S. Representative · North Carolina's 4th districtParty: Democraticlast term ended 1985
- Isaac AndersonU.S. Representative · Pennsylvania's 3rd districtParty: Republicanlast term ended 1807
- Isaac ArnoldU.S. Representative · Illinois's 1st districtParty: Republicanlast term ended 1865
- Jackson AdairU.S. Representative · Illinois's 15th districtParty: Democraticlast term ended 1937
- Jacob AmblerU.S. Representative · Ohio's 17th districtParty: Republicanlast term ended 1873
- James AbdnorU.S. Senator · South DakotaParty: Republicanlast term ended 1987
- James AbercrombieU.S. Representative · Alabama's 2nd districtParty: Whiglast term ended 1855
- James AbourezkU.S. Senator · South DakotaParty: Democraticlast term ended 1979
- James AlcornU.S. Senator · MississippiParty: Republicanlast term ended 1877
- James AldrichU.S. Representative · Illinois's 1st districtParty: Republicanlast term ended 1897
- James AlexanderU.S. Representative · Ohio's 11th districtParty: Whiglast term ended 1839
- James AlleeU.S. Senator · DelawareParty: Republicanlast term ended 1907
- James AllenU.S. Representative · IllinoisParty: Democraticlast term ended 1865
- James AllenU.S. Senator · AlabamaParty: Democraticlast term ended 1978
- James AllisonU.S. Representative · PennsylvaniaParty: not on filelast term ended 1827
- James AlmondU.S. Representative · Virginia's 6th districtParty: Democraticlast term ended 1949
- James AlvordU.S. Representative · Massachusetts's 6th districtParty: Whiglast term ended 1841
- James AndersonU.S. Representative · WashingtonParty: Democraticlast term ended 1857
- James ArmstrongU.S. Representative · PennsylvaniaParty: not on filelast term ended 1795
- James AshleyU.S. Representative · Ohio's 10th districtParty: Republicanlast term ended 1869
- James AswellU.S. Representative · Louisiana's 8th districtParty: Democraticlast term ended 1933
- James AuchinclossU.S. Representative · New Jersey's 3rd districtParty: Republicanlast term ended 1965
- James Van AlenU.S. Representative · New York's 8th districtParty: Republicanlast term ended 1809
- Jason AltmireU.S. Representative · Pennsylvania's 4th districtParty: Democraticlast term ended 2013
- Jean AshbrookU.S. Representative · Ohio's 17th districtParty: Republicanlast term ended 1983
- Jerome AmbroU.S. Representative · New York's 3rd districtParty: Democraticlast term ended 1981
- Jo AbbottU.S. Representative · Texas's 6th districtParty: Democraticlast term ended 1897
- Joel AbbottU.S. Representative · GeorgiaParty: Republicanlast term ended 1825
- Joel AsperU.S. Representative · Missouri's 7th districtParty: Republicanlast term ended 1871
- John AbercrombieU.S. Representative · AlabamaParty: Democraticlast term ended 1917
- John AdairU.S. Representative · Kentucky's 7th districtParty: Jacksonlast term ended 1833
- John AdairU.S. Representative · Indiana's 8th districtParty: Democraticlast term ended 1917
- John AdamsU.S. Representative · New York's 8th districtParty: Jacksonlast term ended 1835
- John AdamsU.S. Representative · Massachusetts's 8th districtParty: Anti Masoniclast term ended 1849
- John AdamsU.S. Representative · New York's 7th districtParty: Democraticlast term ended 1887
- John AdlerU.S. Representative · New Jersey's 3rd districtParty: Democraticlast term ended 2011
- John AhlU.S. Representative · Pennsylvania's 16th districtParty: Democraticlast term ended 1859
- John AldersonU.S. Representative · West Virginia's 3rd districtParty: Democraticlast term ended 1895
- John AlexanderU.S. Representative · Ohio's 2nd districtParty: Republicanlast term ended 1817
- John AlexanderU.S. Representative · Minnesota's 3rd districtParty: Republicanlast term ended 1941
- John AllenU.S. Representative · ConnecticutParty: Federalistlast term ended 1799
- John AllenU.S. Representative · Virginia's 20th districtParty: Anti Jacksonianlast term ended 1835
- John AllenU.S. Representative · Ohio's 15th districtParty: Whiglast term ended 1841
- John AllenU.S. Senator · WashingtonParty: Republicanlast term ended 1893
- John AllenU.S. Representative · Mississippi's 1st districtParty: Democraticlast term ended 1901
- John AllenU.S. Representative · Illinois's 14th districtParty: Republicanlast term ended 1933
- John AllenU.S. Representative · California's 7th districtParty: Republicanlast term ended 1959
- John AlleyU.S. Representative · Massachusetts's 5th districtParty: Republicanlast term ended 1867
- John AllisonU.S. Representative · Pennsylvania's 23rd districtParty: Ind. Republican-Democratlast term ended 1857
- John AndersonU.S. Representative · Maine's 2nd districtParty: Jacksonlast term ended 1833
- John AndersonU.S. Representative · Kansas's 5th districtParty: Ind. Republicanlast term ended 1891
- John AndersonU.S. Representative · California's 8th districtParty: Republicanlast term ended 1953
- John AndersonU.S. Representative · Illinois's 16th districtParty: Republicanlast term ended 1981
- John AndrewU.S. Representative · Massachusetts's 3rd districtParty: Democraticlast term ended 1893
- John AndrewsU.S. Representative · New York's 27th districtParty: Democraticlast term ended 1839
- John AndrusU.S. Representative · New York's 19th districtParty: Republicanlast term ended 1913
- John AppletonU.S. Representative · Maine's 2nd districtParty: Democraticlast term ended 1853
- John ArcherU.S. Representative · Maryland's 6th districtParty: Republicanlast term ended 1807
- John ArmstrongU.S. Senator · New YorkParty: Republicanlast term ended 1804
- John ArnotU.S. Representative · New York's 28th districtParty: Democraticlast term ended 1887
- John AshbrookU.S. Representative · Ohio's 17th districtParty: Republicanlast term ended 1983
- John AshcroftU.S. Senator · MissouriParty: Republicanlast term ended 2001
- John AsheU.S. Representative · North Carolina's 3rd districtParty: not on filelast term ended 1793
- John AsheU.S. Representative · Tennessee's 10th districtParty: Whiglast term ended 1845
- John AshmoreU.S. Representative · South Carolina's 5th districtParty: Democraticlast term ended 1861
- John AtkinsU.S. Representative · Tennessee's 8th districtParty: Democraticlast term ended 1883
- John AtwaterU.S. Representative · North Carolina's 4th districtParty: Populistlast term ended 1901
- John AverillU.S. Representative · Minnesota's 3rd districtParty: Republicanlast term ended 1875
- John AveryU.S. Representative · Michigan's 11th districtParty: Republicanlast term ended 1897
- John AycriggU.S. Representative · New JerseyParty: Whiglast term ended 1843
- John Van AlenU.S. Representative · New York's 7th districtParty: Federalistlast term ended 1799
- Joseph AbbottU.S. Senator · North CarolinaParty: Republicanlast term ended 1871
- Joseph AcklenU.S. Representative · Louisiana's 3rd districtParty: Democraticlast term ended 1881
- Joseph AddabboU.S. Representative · New York's 6th districtParty: Democraticlast term ended 1987
- Joseph AllenU.S. Representative · Massachusetts's 10th districtParty: Federalistlast term ended 1811
- Joseph AmmermanU.S. Representative · Pennsylvania's 23rd districtParty: Democraticlast term ended 1979
- Joseph AndersonU.S. Senator · TennesseeParty: Republicanlast term ended 1815
- Joseph AndersonU.S. Representative · New York's 7th districtParty: Democraticlast term ended 1847
- Joseph AnthonyU.S. Representative · Pennsylvania's 16th districtParty: Jacksonlast term ended 1837
- Joshua AlexanderU.S. Representative · Missouri's 3rd districtParty: Democraticlast term ended 1921
- Josiah AbbottU.S. Representative · Massachusetts's 4th districtParty: Democraticlast term ended 1877
- Josiah AndersonU.S. Representative · Tennessee's 3rd districtParty: Whiglast term ended 1851
- Judson AllenU.S. Representative · New York's 20th districtParty: Democraticlast term ended 1841
- Julius AlfordU.S. Representative · GeorgiaParty: Whiglast term ended 1843
- Justin AmashU.S. Representative · Michigan's 3rd districtParty: Libertarianlast term ended 2021
- Kelly ArmstrongU.S. Representative · North DakotaParty: Republicanlast term ended 2024
- Kelly AyotteU.S. Senator · New HampshireParty: Republicanlast term ended 2017
- Lamar AlexanderU.S. Senator · TennesseeParty: Republicanlast term ended 2021
- Landaff AndrewsU.S. Representative · Kentucky's 11th districtParty: Whiglast term ended 1843
- Laurence ArnoldU.S. Representative · Illinois's 23rd districtParty: Democraticlast term ended 1943
- Lemuel AlstonU.S. Representative · South Carolina's 8th districtParty: Republicanlast term ended 1811
- Lemuel AmermanU.S. Representative · Pennsylvania's 11th districtParty: Democraticlast term ended 1893
- Lemuel ArnoldU.S. Representative · Rhode Island's 2nd districtParty: Whiglast term ended 1847
- Leo AllenU.S. Representative · Illinois's 16th districtParty: Republicanlast term ended 1961
- LeRoy AndersonU.S. Representative · Montana's 2nd districtParty: Democraticlast term ended 1961
- Les AuCoinU.S. Representative · Oregon's 1st districtParty: Democraticlast term ended 1993
- Leslie ArendsU.S. Representative · Illinois's 15th districtParty: Republicanlast term ended 1975
- Leslie AspinU.S. Representative · Wisconsin's 1st districtParty: Democraticlast term ended 1993
- Levi AnkenyU.S. Senator · WashingtonParty: Republicanlast term ended 1909
- Lewis ApsleyU.S. Representative · Massachusetts's 4th districtParty: Republicanlast term ended 1897
- Louis AtkinsonU.S. Representative · Pennsylvania's 18th districtParty: Republicanlast term ended 1893
- Lucien AinsworthU.S. Representative · Iowa's 3rd districtParty: Democraticlast term ended 1877
- Lucien AndersonU.S. Representative · Kentucky's 1st districtParty: Unconditional Unionistlast term ended 1865
- Mark AlexanderU.S. Representative · Virginia's 4th districtParty: Jacksonlast term ended 1833
- Mark AndrewsU.S. Senator · North DakotaParty: Republicanlast term ended 1987
- Marshall ArnoldU.S. Representative · Missouri's 14th districtParty: Democraticlast term ended 1895
- Martin AnsorgeU.S. Representative · New York's 21st districtParty: Republicanlast term ended 1923
- Maryon AllenU.S. Senator · AlabamaParty: Democraticlast term ended 1978
- Michael AndrewsU.S. Representative · Texas's 25th districtParty: Democraticlast term ended 1995
- Michael ArcuriU.S. Representative · New York's 24th districtParty: Democraticlast term ended 2011
- Michael AshU.S. Representative · Pennsylvania's 3rd districtParty: Jacksonlast term ended 1837
- Miles AllgoodU.S. Representative · Alabama's 5th districtParty: Democraticlast term ended 1935
- Moses ArmstrongU.S. Representative · DKParty: Democraticlast term ended 1875
- Nathan AppletonU.S. Representative · Massachusetts's 1st districtParty: Whiglast term ended 1843
- Nathaniel AlbertsonU.S. Representative · Indiana's 1st districtParty: Democraticlast term ended 1851
- Nathaniel AlexanderU.S. Representative · North Carolina's 10th districtParty: Republicanlast term ended 1805
- Nathaniel AllenU.S. Representative · New York's 21st districtParty: Republicanlast term ended 1821
- Nehemiah AbbottU.S. Representative · Maine's 3rd districtParty: Republicanlast term ended 1859
- Neil AbercrombieU.S. Representative · Hawaii's 1st districtParty: Democraticlast term ended 2010
- Nelson AldrichU.S. Senator · Rhode IslandParty: Republicanlast term ended 1911
- Oakes AmesU.S. Representative · Massachusetts's 2nd districtParty: Republicanlast term ended 1873
- Orland ArmstrongU.S. Representative · Missouri's 6th districtParty: Republicanlast term ended 1953
- Parmenio AdamsU.S. Representative · New York's 29th districtParty: Adamslast term ended 1827
- Philip AllenU.S. Senator · Rhode IslandParty: Democraticlast term ended 1859
- Ralph Lee AbrahamU.S. Representative · Louisiana's 5th districtParty: Republicanlast term ended 2021
- Richard AldrichU.S. Representative · Rhode Island's 2nd districtParty: Republicanlast term ended 1933
- Richard AndersonU.S. Representative · Kentucky's 8th districtParty: Republicanlast term ended 1821
- Richard ArmeyU.S. Representative · Texas's 26th districtParty: Republicanlast term ended 2003
- Richard AtkinsonU.S. Representative · Tennessee's 5th districtParty: Democraticlast term ended 1939
- Richard AustinU.S. Representative · Tennessee's 2nd districtParty: Republicanlast term ended 1919
- Richard AyerU.S. Representative · Virginia's 1st districtParty: Republicanlast term ended 1871
- Robert AdamsU.S. Senator · MississippiParty: Jacksonlast term ended 1831
- Robert AdamsU.S. Representative · Pennsylvania's 2nd districtParty: Republicanlast term ended 1907
- Robert AllenU.S. Representative · Tennessee's 5th districtParty: Jacksonlast term ended 1827
- Robert AllenU.S. Representative · Virginia's 17th districtParty: Jacksonlast term ended 1833
- Robert AllenU.S. Representative · West Virginia's 2nd districtParty: Democraticlast term ended 1925
- Robert AllenU.S. Representative · Pennsylvania's 28th districtParty: Democraticlast term ended 1941
- Robert AllisonU.S. Representative · Pennsylvania's 12th districtParty: Anti Masoniclast term ended 1833
- Robert ArmfieldU.S. Representative · North Carolina's 7th districtParty: Democraticlast term ended 1883
- Robert AshmoreU.S. Representative · South Carolina's 4th districtParty: Democraticlast term ended 1969
- Robert E. AndrewsU.S. Representative · New Jersey's 1st districtParty: Democraticlast term ended 2014
- Rodney AlexanderU.S. Representative · Louisiana's 5th districtParty: Republicanlast term ended 2013
- Roy AyersU.S. Representative · Montana's 2nd districtParty: Democraticlast term ended 1937
- Russell AlgerU.S. Senator · MichiganParty: Republicanlast term ended 1907
- Samuel AllenU.S. Representative · Massachusetts's 7th districtParty: Adamslast term ended 1829
- Samuel AndersonU.S. Representative · Pennsylvania's 4th districtParty: Adamslast term ended 1829
- Samuel AndrewsU.S. Representative · New York's 29th districtParty: Republicanlast term ended 1859
- Samuel ArentzU.S. Representative · NevadaParty: Republicanlast term ended 1933
- Samuel ArnellU.S. Representative · Tennessee's 6th districtParty: Republicanlast term ended 1871
- Samuel ArnoldU.S. Representative · Connecticut's 2nd districtParty: Democraticlast term ended 1859
- Samuel ArnoldU.S. Senator · Rhode IslandParty: Republicanlast term ended 1863
- Samuel ArnoldU.S. Representative · Missouri's 1st districtParty: Republicanlast term ended 1949
- Samuel AvisU.S. Representative · West Virginia's 3rd districtParty: Republicanlast term ended 1915
- Samuel AxtellU.S. Representative · California's 1st districtParty: Democraticlast term ended 1871
- Sandy AdamsU.S. Representative · Florida's 24th districtParty: Republicanlast term ended 2013
- Sherlock AndrewsU.S. Representative · Ohio's 15th districtParty: Whiglast term ended 1843
- Sherman AdamsU.S. Representative · New Hampshire's 2nd districtParty: Republicanlast term ended 1947
- Silas AdamsU.S. Representative · Kentucky's 11th districtParty: Republicanlast term ended 1895
- Simeon AndersonU.S. Representative · Kentucky's 5th districtParty: Whiglast term ended 1841
- Spencer AbrahamU.S. Senator · MichiganParty: Republicanlast term ended 2001
- Stephen AdamsU.S. Senator · MississippiParty: Democraticlast term ended 1857
- Steve AustriaU.S. Representative · Ohio's 7th districtParty: Republicanlast term ended 2013
- Steven AyresU.S. Representative · New York's 18th districtParty: Democraticlast term ended 1913
- Stevenson ArcherU.S. Representative · Maryland's 6th districtParty: Republicanlast term ended 1821
- Stevenson ArcherU.S. Representative · Maryland's 2nd districtParty: Democraticlast term ended 1875
- Stewart ApplebyU.S. Representative · New Jersey's 3rd districtParty: Republicanlast term ended 1927
- Sydenham AlexanderU.S. Representative · North Carolina's 6th districtParty: Democraticlast term ended 1895
- Sydenham AnconaU.S. Representative · Pennsylvania's 8th districtParty: Democraticlast term ended 1867
- Sydney AndersonU.S. Representative · Minnesota's 1st districtParty: Republicanlast term ended 1925
- Theodore ApplebyU.S. Representative · New Jersey's 3rd districtParty: Republicanlast term ended 1923
- Theron AkinU.S. Representative · New York's 25th districtParty: Progressive Republicanlast term ended 1913
- Thomas AbernethyU.S. Representative · Mississippi's 1st districtParty: Democraticlast term ended 1973
- Thomas AkersU.S. Representative · Missouri's 5th districtParty: Americanlast term ended 1857
- Thomas AlfordU.S. Representative · Arkansas's 5th districtParty: Democraticlast term ended 1963
- Thomas AllenU.S. Representative · Missouri's 2nd districtParty: Democraticlast term ended 1883
- Thomas AllenU.S. Representative · Maine's 1st districtParty: Democraticlast term ended 2009
- Thomas AmlieU.S. Representative · Wisconsin's 1st districtParty: Progressivelast term ended 1939
- Thomas AndersonU.S. Representative · Missouri's 2nd districtParty: Ind. Democratlast term ended 1861
- Thomas AndrewsU.S. Representative · Maine's 1st districtParty: Democraticlast term ended 1995
- Thomas ArnoldU.S. Representative · Tennessee's 1st districtParty: Whiglast term ended 1843
- Thomas AsheU.S. Representative · North Carolina's 6th districtParty: Democraticlast term ended 1877
- Thomas AshleyU.S. Representative · Ohio's 9th districtParty: Democraticlast term ended 1981
- Thomas AverettU.S. Representative · Virginia's 3rd districtParty: Democraticlast term ended 1853
- Thomas Van AlstyneU.S. Representative · New York's 16th districtParty: Democraticlast term ended 1885
- Timothy AnsberryU.S. Representative · Ohio's 5th districtParty: Democraticlast term ended 1915
- Truman AldrichU.S. Representative · Alabama's 9th districtParty: Republicanlast term ended 1897
- Victor AnfusoU.S. Representative · New York's 8th districtParty: Democraticlast term ended 1963
- W. Todd AkinU.S. Representative · Missouri's 2nd districtParty: Republicanlast term ended 2013
- Walter AlbaughU.S. Representative · Ohio's 4th districtParty: Republicanlast term ended 1939
- Walter AndrewsU.S. Representative · New York's 42nd districtParty: Republicanlast term ended 1949
- Warren ArnoldU.S. Representative · Rhode Island's 2nd districtParty: Republicanlast term ended 1897
- Warren AustinU.S. Senator · VermontParty: Republicanlast term ended 1946
- Watkins AbbittU.S. Representative · Virginia's 4th districtParty: Democraticlast term ended 1973
- Wayne AllardU.S. Senator · ColoradoParty: Republicanlast term ended 2009
- Wayne AspinallU.S. Representative · Colorado's 4th districtParty: Democraticlast term ended 1973
- Wendell AndersonU.S. Senator · MinnesotaParty: Democraticlast term ended 1978
- Wilbur AdamsU.S. Representative · DelawareParty: Democraticlast term ended 1935
- William AdamsonU.S. Representative · Georgia's 4th districtParty: Democraticlast term ended 1919
- William AddamsU.S. Representative · Pennsylvania's 7th districtParty: Jacksonlast term ended 1829
- William AikenU.S. Representative · South Carolina's 2nd districtParty: Democraticlast term ended 1857
- William AineyU.S. Representative · Pennsylvania's 14th districtParty: Republicanlast term ended 1915
- William AlbertU.S. Representative · Maryland's 5th districtParty: Republicanlast term ended 1875
- William AldrichU.S. Representative · Illinois's 1st districtParty: Republicanlast term ended 1883
- William AldrichU.S. Representative · Alabama's 4th districtParty: Republicanlast term ended 1901
- William AlexanderU.S. Representative · Arkansas's 1st districtParty: Democraticlast term ended 1993
- William AllenU.S. Senator · OhioParty: Democraticlast term ended 1849
- William AllenU.S. Representative · Ohio's 4th districtParty: Democraticlast term ended 1863
- William AllenU.S. Representative · Illinois's 13th districtParty: Democraticlast term ended 1865
- William AllenU.S. Senator · NebraskaParty: Populistlast term ended 1901
- William AllenU.S. Representative · DelawareParty: Democraticlast term ended 1939
- William AllisonU.S. Senator · IowaParty: Republicanlast term ended 1908
- William AlstonU.S. Representative · Alabama's 1st districtParty: Whiglast term ended 1851
- William AndersonU.S. Representative · Pennsylvania's 1st districtParty: Republicanlast term ended 1819
- William AndersonU.S. Representative · Kentucky's 4th districtParty: Ind. Republican-Democratlast term ended 1861
- William AndersonU.S. Representative · Illinois's 19th districtParty: Independentlast term ended 1877
- William AndersonU.S. Representative · Tennessee's 1st districtParty: Republicanlast term ended 1897
- William AndersonU.S. Representative · Tennessee's 6th districtParty: Democraticlast term ended 1973
- William AndrewsU.S. Representative · New MexicoParty: Republicanlast term ended 1913
- William AndrewsU.S. Representative · Maryland's 1st districtParty: Republicanlast term ended 1921
- William AndrewsU.S. Representative · Nebraska's 5th districtParty: Republicanlast term ended 1923
- William AngelU.S. Representative · New York's 13th districtParty: Jacksonlast term ended 1833
- William AppletonU.S. Representative · Massachusetts's 5th districtParty: Constitutional Unionistlast term ended 1863
- William ArcherU.S. Senator · VirginiaParty: Jacksonlast term ended 1847
- William ArmstrongU.S. Representative · Virginia's 16th districtParty: Adamslast term ended 1833
- William ArmstrongU.S. Representative · Pennsylvania's 18th districtParty: Republicanlast term ended 1871
- William ArmstrongU.S. Senator · ColoradoParty: Republicanlast term ended 1991
- William ArnoldU.S. Representative · Pennsylvania's 28th districtParty: Republicanlast term ended 1899
- William ArnoldU.S. Representative · Illinois's 23rd districtParty: Democraticlast term ended 1937
- William ArthurU.S. Representative · Kentucky's 6th districtParty: Democraticlast term ended 1875
- William AshbrookU.S. Representative · Ohio's 17th districtParty: Democraticlast term ended 1941
- William AsheU.S. Representative · North Carolina's 3rd districtParty: Democraticlast term ended 1855
- William AshleyU.S. Representative · MissouriParty: Jacksonianlast term ended 1837
- William AtkesonU.S. Representative · Missouri's 6th districtParty: Republicanlast term ended 1923
- William AveryU.S. Representative · Tennessee's 10th districtParty: Democraticlast term ended 1861
- William AveryU.S. Representative · Kansas's 2nd districtParty: Republicanlast term ended 1965
- William AyresU.S. Representative · Kansas's 5th districtParty: Democraticlast term ended 1935
- William AyresU.S. Representative · Ohio's 14th districtParty: Republicanlast term ended 1971
- Willis AllenU.S. Representative · Illinois's 9th districtParty: Democraticlast term ended 1855
- Willis AlstonU.S. Representative · North Carolina's 2nd districtParty: Jacksonlast term ended 1831
- Wyatt AikenU.S. Representative · South Carolina's 3rd districtParty: Democraticlast term ended 1917