Marilyn Jean Horan
Appointed by President Donald J. Trump in 2018 and confirmed by voice vote, Marilyn Jean Horan is a Judge on the U.S. District Court for the Western District of Pennsylvania. She earned a law degree from University of Pittsburgh School of Law in 1979. Sources ↓
- Born
- 1954 · age 72
- Appointed by
- Donald J. Trump, 2018
- Confirmed
- by voice vote
- Education
- Pennsylvania State 1976 · University of Pittsburgh Law 1979
- Succeeded
- Gary L. Lancaster
Federal judicial service
| Year | Court | Appointed by | Vote |
|---|---|---|---|
| 2018 | Western District of Pennsylvania succeeded Gary L. Lancaster | Trump (R) | Voice vote |
Party letters show the appointing president’s party, not the judge’s own. A voice vote means the chamber approved aloud. No senator-by-senator tally is recorded.
Confirmation vote
Voice vote
The Senate approved this confirmation aloud, with no senator-by-senator tally recorded. Recorded roll-call votes begin in 1989.
Education
Judicial Record
Caseload & case types
In our data, Horan was assigned 1,095 district-court cases (2013–2026). Median time from filing to termination: 220 days across 879 closed cases.
Case assignment is from CourtListener’s PACER-derived docket records: a partial sample, not a complete caseload, reflecting the judge last assigned each case. How we count.
On appeal
Of 59 of Horan’s decisions reviewed on the merits by the U.S. courts of appeals in our data, 43 were affirmed, 8 reversed or vacated, and 8 affirmed in part and reversed in part. This is a historical count of appellate outcomes for cases we could match, not a judgment of the judge, and not a complete record. How we count.
Questions & answers
- Who appointed Marilyn Jean Horan?
- President Donald J. Trump appointed Marilyn Jean Horan to the U.S. District Court for the Western District of Pennsylvania in 2018.
- Was Marilyn Jean Horan appointed by a Democrat or a Republican?
- Marilyn Jean Horan was appointed by President Donald J. Trump, a Republican. JudicialFinder records the appointing president's party, not a judge's own politics.
- What was Marilyn Jean Horan's confirmation vote?
- Marilyn Jean Horan was confirmed by voice vote on September 6, 2018. No senator-by-senator tally was recorded.
- Which court is Marilyn Jean Horan on?
- Marilyn Jean Horan is a Judge on the U.S. District Court for the Western District of Pennsylvania.
Sources
Each fact on this page traces to a primary public record.
- FJC Biographical Directory
- Wikidata
- Portrait: United States District Court for the Western District of Pennsylvania (Public domain), via Wikimedia Commons
How we source & reconcile data → Data & Sources
See something wrong? Report an error. Fixes are logged in the corrections log.
7 years on the U.S. District Court for the Western District of Pennsylvania. Data as of 2026-08-10. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).