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Koster v. (American) Lumbermens Mutual Casualty Co.

330 U.S. 518 · Decided March 10, 1947 · Supreme Court of the United States

Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.

At a glance

Koster v. (American) Lumbermens Mutual Casualty Co. was decided on March 10, 1947 by a vote of 5–4. The Court affirmed the lower court's decision. Justice Robert H. Jackson wrote the opinion of the Court. SCDB classifies its main issue as “Venue” in the Judicial Power area.

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Case details

Citations
330 U.S. 518 · 67 S. Ct. 828 · 91 L. Ed. 1067 · 1947 U.S. LEXIS 2552
Docket number
206
Decided
March 10, 1947
Argued
December 19, 1946
Court era
Vinson Court
Decision type
Opinion of the Court (orally argued)
Disposition
Affirmed
Outcome for petitioner
The petitioning party did not receive a favorable disposition
Vote
5–4
Majority opinion
Robert H. Jackson
Opinion assigned by
Fred M. Vinson
How the case arrived
Certiorari
Issue (SCDB)
Venue
Issue area
Judicial Power
Legal provision
Federal Rules of Civil or Appellate Procedure
Type of law
Court rules
Decision direction (SCDB)
Liberal what this means

How the Justices voted

Full case caption

Koster v. (American) Lumbermens Mutual Casualty Co.

SCDB identifiers: case 1946-069, docket 1946-069-01.

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error