Supreme Court of California / Joined 1940 / Served to 1970

Roger J. Traynor

Justice, Supreme Court of California

Roger J. Traynor was a Justice of the Supreme Court of California, who joined the court in 1940. Opinions & record ↓ Sources ↓

Born
1900 · age 126
Tenure
1940–1970 · 29 yrs

Judicial service

YearCourtAppointed byVote
1940Supreme Court of California

Education

Judicial Record

In our data, Traynor authored 734 published opinions for the court (1940–1970), plus 128 dissents and 72 concurrences. Most cited: Dillon v. Legg (1,026 citations).

Published, precedential opinions from the CourtListener corpus. Counts and rankings are objective and recomputable: how we count. We describe the record, not the judge. 310 of these were attributed to Traynor by a unique court-, date-, and surname-match against our roster (marked ), because CourtListener recorded no author for them. Each links to the official text to verify. How we match.

Selected opinions

YearCaseCitationCited
1968Dillon v. Legg· Dissent68 Cal. 2d 7281,026
1963Greenman v. Yuba Power Products, Inc.59 Cal. 2d 571,019
1960Neal v. State of California55 Cal. 2d 11950
1965Parsons v. Bristol Development Co.62 Cal. 2d 861918
1942Bernhard v. Bank of America National Trust & Saving Association19 Cal. 2d 807895
1968Pacific Gas & Electric Co. v. G. W. Thomas Drayage & Rigging Co.69 Cal. 2d 33846
1965Seely v. White Motor Co.403 P.2d 145667
1965People v. Aranda63 Cal. 2d 518665
1955People v. Cahan282 P.2d 905640
1961Muskopf v. Corning Hospital District55 Cal. 2d 211527
1943Estate of Bristol v. Young· Dissent23 Cal. 2d 221508
1963People v. Ibarra60 Cal. 2d 460498
1969People v. Hood462 P.2d 370435
1950People v. Knowles217 P.2d 1425
1956People v. Riser47 Cal. 2d 566418

Showing the 15 most-cited of 934 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

How do judges of the Supreme Court of California reach the bench?
The court's current selection method is merit selection with retention.
Which court was Roger J. Traynor on?
Roger J. Traynor was a Justice of the Supreme Court of California.

Sources

Each fact on this page traces to a primary public record.

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29 years on the Supreme Court of California. Data as of 2026-03-31. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).