Oliver Winston Wanger
Appointed by President George H.W. Bush in 1991 and confirmed by voice vote, Oliver Winston Wanger was a Judge on the U.S. District Court for the Eastern District of California. He earned a law degree from University of California, Berkeley, School of Law in 1966. Rulings & record ↓ Sources ↓
- Born
- 1940 · age 86
- Appointed by
- George H.W. Bush, 1991
- Confirmed
- by voice vote
- Education
- University of Southern California 1963 · University of California, Berkeley, Law 1966
- Succeeded
- Milton Lewis Schwartz
- Succeeded by
- Lawrence Joseph O'Neill
Federal judicial service
| Year | Court | Appointed by | Vote |
|---|---|---|---|
| 1991 | Eastern District of California succeeded Milton Lewis Schwartz | G.H.W. Bush (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, Wanger was assigned 6,083 district-court cases (1982–2012). Median time from filing to termination: 265 days across 6,082 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 233 of Wanger’s decisions reviewed on the merits by the U.S. courts of appeals in our data, 188 were affirmed, 25 reversed or vacated, and 20 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.
In our data, Wanger authored 174 published opinions for the court (1991–2011). Most cited: United States v. Westlands Water District (263 citations).
A selective record from published opinions in the CourtListener corpus, not every ruling; most unpublished district orders are not included. Counts and rankings are objective and recomputable: how we count. We describe the record, not the judge.
Recent & notable rulings
| Year | Case | Citation | Cited |
|---|---|---|---|
| 2001 | United States v. Westlands Water District | 134 F. Supp. 2d 1111 | 263 |
| 2011 | Jadwin v. County of Kern | 767 F. Supp. 2d 1069 | 90 |
| 2005 | Neveu v. City of Fresno | 392 F. Supp. 2d 1159 | 83 |
| 2004 | United States v. Southern California Edison Co. | 300 F. Supp. 2d 964 | 74 |
| 2008 | Lopes v. Vieira | 543 F. Supp. 2d 1149 | 56 |
| 2010 | Clarke v. Upton | 703 F. Supp. 2d 1037 | 55 |
| 2010 | Jensen v. Quality Loan Service Corp. | 702 F. Supp. 2d 1183 | 48 |
| 2011 | Nasrawi v. Buck Consultants, LLC | 776 F. Supp. 2d 1166 | 38 |
| 1993 | Sumner Peck Ranch, Inc. v. Bureau of Reclamation | 823 F. Supp. 715 | 38 |
| 2002 | FMC Corp. v. Vendo Co. | 196 F. Supp. 2d 1023 | 37 |
| 1999 | Barapind v. Reno | 72 F. Supp. 2d 1132 | 37 |
| 2009 | Roe Ex Rel. Callahan v. Gustine Unified School District | 678 F. Supp. 2d 1008 | 32 |
| 1993 | In Re Dinubilo | 177 B.R. 932 | 32 |
| 2009 | Jadwin v. County of Kern | 610 F. Supp. 2d 1129 | 30 |
| 2009 | Creighton v. City of Livingston | 628 F. Supp. 2d 1199 | 29 |
Showing the 15 most-cited of 174 authored opinions in our data. “Cited” is inbound citations across the CourtListener corpus. Case links open the ruling’s full text (CourtListener) or its page here; read the methodology and verify against the primary source.
Questions & answers
- Who appointed Oliver Winston Wanger?
- President George H.W. Bush appointed Oliver Winston Wanger to the U.S. District Court for the Eastern District of California in 1991.
- Was Oliver Winston Wanger appointed by a Democrat or a Republican?
- Oliver Winston Wanger was appointed by President George H.W. Bush, a Republican. JudicialFinder records the appointing president's party, not a judge's own politics.
- What was Oliver Winston Wanger's confirmation vote?
- Oliver Winston Wanger was confirmed by voice vote on March 21, 1991. No senator-by-senator tally was recorded.
- Which court was Oliver Winston Wanger on?
- Oliver Winston Wanger was a Judge on the U.S. District Court for the Eastern District of California.
Sources
Each fact on this page traces to a primary public record.
- FJC Biographical Directory
- Wikidata
- CourtListener bulk data (Free Law Project): authored opinions & citation counts
How we source & reconcile data → Data & Sources
See something wrong? Report an error. Fixes are logged in the corrections log.
20 years on the U.S. District Court for the Eastern District of California. Data as of 2026-08-10. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).