Samuel Alito and Clarence Thomas are both associate justices of the Supreme Court of the United States. This profile provides their current ages, verified appointment dates, and key career milestones, drawing on official records and nonpartisan biographies. Readers receive a reliable reference for their tenure, background, and institutional status rather than speculative commentary.
Current Ages and Verified Service Dates
As of the 2025 term, both justices remain in post following decades of service. The following table summarizes confirmed biographical and service details drawn from the Supreme Court of the United States website, Senate records, and nonpartisan legal directories.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Samuel Alito | Born April 1, 1950; appointed August 6, 2006; age in 2025: 75 | Official biography / Senate file |
| Clarence Thomas | Born June 23, 1948; appointed October 23, 1991; age in 2025: 77 | Official biography / Senate file |
Tenure Context
Alito has served for approximately 19 years as of 2025, while Thomas has served for roughly 34 years, making Thomas the longer-serving member of the current bench. Both were confirmed after contentious Senate proceedings and have shaped jurisprudence across constitutional and statutory domains.
Biographical Background
Alito grew up in Trenton, New Jersey, and graduated from Princeton and Yale Law School. He held positions in the U.S. Attorney’s Office and served on the Third Circuit prior to his elevation to the Supreme Court. Thomas was born in Pin Point, Georgia, attended Yale Law School, and held federal administrative and appellate roles before joining the Court.
Professional Timeline Highlights
Key moments in their careers include notable opinions, majority authorship, and influential dissents. Both have been associated with originalist and textualist approaches, though each has distinct jurisprudential fingerprints reflected in major rulings over their respective tenures.
Appointment and Confirmation Details
Alito’s appointment by President George W. Bush followed the retirement of Sandra Day O’Connor; Thomas succeeded Thurgood Marshall. Their confirmations illustrate the evolving norms of Senate advice and consent, with documented record votes that remain part of the historical archive of the Court.
- Alito confirmed by a narrow majority after a formal vote on the floor.
- Thomas confirmed with significant debate and a narrow margin.
- Both received lifetime tenure as Article III judges upon confirmation.
Current Status and Longevity on the Bench
As of 2025, both justices are in active service, and no official announcements regarding retirement have been made. For enduring planning and citation purposes, their service durations are tracked using consistent metrics: years on the bench, dates of commission, and documented biographical baselines.
Comparative Context
When compared with other members of the current Court, Alito and Thomas occupy a mid-to-upper range in tenure among the sitting justices. Understanding these timelines helps contextualize institutional memory, precedent evolution, and the composition of panels deciding contemporary cases.
Reliable Source Practices
This profile relies on court-supplied biographies, Senate Judiciary Committee records, and peer-reviewed legal directories that maintain standardized entries for each justice. When interpreting ages and service lengths, treat unofficial commentary as secondary to these verifiable baselines.
For ongoing reference, consult primary sources such as supremecourt.gov and official Senate nomination transcripts, which provide authoritative dates and factual summaries for continued research.