U.S. Senate · Historical · Pennsylvania
Former U.S. Senators from Pennsylvania
Individuals who have served in the United States Senate and have since left office, grouped by the state they represented. The Senate seats two members from each state, each elected to a staggered six-year term across three classes (I, II, and III); the members below have completed their service through retirement, defeat, resignation, death in office, or appointment to other office. Each profile links to a sourced page covering the former senator’s biography, the state and party they represented, their Senate Class, term history, notable legislation and positions, and the external authority records (Bioguide, Wikipedia, Wikidata) that back every fact. Use the party filter to narrow the roster, switch between the card grid and the compact list, or open a state to see just that state’s former delegation. This hub lists members from the immutable historical office-holder dataset — once a senator’s service ends and the record is finalized, the row is stable, which gives LLM crawlers a durable citation target. Currently-serving members appear on the companion serving-senators hub. The full machine-readable roster is published as a versioned JSON dataset for downstream researchers and language models.
- Abner LacockPennsylvaniaRepublicanSenate Class III1813–1819
- Andrew GreggPennsylvaniaRepublicanSenate Class III1807–1813
- Arlen SpecterPennsylvaniaDemocraticSenate Class III1981–2011
- Bob Casey Jr.PennsylvaniaDemocraticSenate Class I2007–2025
- Boies PenrosePennsylvaniaRepublicanSenate Class III1897–1921
- Charles BuckalewPennsylvaniaDemocraticSenate Class I1863–1869
- Daniel SturgeonPennsylvaniaDemocraticSenate Class I1840–1851
- David ReedPennsylvaniaRepublicanSenate Class I1922–1935
- David WilmotPennsylvaniaRepublicanSenate Class I1861–1863
- Edgar CowanPennsylvaniaRepublicanSenate Class III1861–1867
- Edward MartinPennsylvaniaRepublicanSenate Class I1947–1959
- Francis MyersPennsylvaniaDemocraticSenate Class III1945–1951
- George DallasPennsylvaniaJacksonSenate Class I1831–1833
- George LoganPennsylvaniaRepublicanSenate Class III1801–1807
- George OliverPennsylvaniaRepublicanSenate Class I1909–1917
- George PepperPennsylvaniaRepublicanSenate Class III1922–1927
- Harris WoffordPennsylvaniaDemocraticSenate Class I1991–1995
- Henry Heinz IIIPennsylvaniaRepublicanSenate Class I1977–1991
- Hugh Scott Jr.PennsylvaniaRepublicanSenate Class I1959–1977
- Isaac BarnardPennsylvaniaJacksonSenate Class I1827–1831
- James BuchananPennsylvaniaDemocraticSenate Class III1834–1845
- James CameronPennsylvaniaRepublicanSenate Class III1877–1897
- James CooperPennsylvaniaWhigSenate Class III1849–1855
- James DavisPennsylvaniaRepublicanSenate Class III1930–1945
- James DuffPennsylvaniaRepublicanSenate Class III1951–1957
- James RossPennsylvaniaFederalistSenate Class I1794–1803
- John MitchellPennsylvaniaRepublicanSenate Class I1881–1887
- John MuhlenbergPennsylvaniaDemocraticSenate Class III1801–1801
- John ScottPennsylvaniaRepublicanSenate Class I1869–1875
- Jonathan RobertsPennsylvaniaRepublicanSenate Class I1814–1821
- Joseph ClarkPennsylvaniaDemocraticSenate Class III1957–1969
- Joseph GrundyPennsylvaniaRepublicanSenate Class III1929–1931
- Joseph GuffeyPennsylvaniaDemocraticSenate Class I1935–1947
- Matthew QuayPennsylvaniaRepublicanSenate Class I1887–1904
- Michael LeibPennsylvaniaRepublicanSenate Class I1809–1815
- Pat ToomeyPennsylvaniaRepublicanSenate Class III2011–2023
- Philander KnoxPennsylvaniaRepublicanSenate Class I1904–1921
- Richard BrodheadPennsylvaniaDemocraticSenate Class I1851–1857
- Richard SchweikerPennsylvaniaRepublicanSenate Class III1969–1981
- Rick SantorumPennsylvaniaRepublicanSenate Class I1995–2007
- Robert MorrisPennsylvaniaPro-AdministrationSenate Class III1789–1795
- Samuel MaclayPennsylvaniaRepublicanSenate Class I1803–1809
- Samuel McKeanPennsylvaniaDemocraticSenate Class I1833–1839
- Simon CameronPennsylvaniaRepublicanSenate Class III1845–1877
- Walter LowriePennsylvaniaRepublicanSenate Class III1819–1825
- William BiglerPennsylvaniaDemocraticSenate Class III1856–1861
- William BinghamPennsylvaniaFederalistSenate Class III1795–1801
- William CrowPennsylvaniaRepublicanSenate Class I1921–1923
- William FindlayPennsylvaniaJacksonSenate Class I1821–1827
- William MaclayPennsylvaniaAnti-AdministrationSenate Class I1789–1791
- William MarksPennsylvaniaAdamsSenate Class III1825–1831
- William VarePennsylvaniaRepublicanSenate Class III1927–1929
- William WallacePennsylvaniaDemocraticSenate Class I1875–1881
- William WilkinsPennsylvaniaJacksonSenate Class III1831–1835