United Mine Workers of America v. Gibbs
383 U.S. 715 · 1966
Facts
Rivalry existed between UMW and Southern Labor Union in southern Appalachian coal fields. Tennessee Consolidated Coal Company laid off UMW miners, and its subsidiary, Grundy Company, hired Paul Gibbs as mine superintendent to open a new mine using Southern Labor Union members. Grundy also contracted Gibbs to haul coal. On August 15 and 16, 1960, armed UMW Local 5881 members forcibly prevented the mine's opening, threatening Gibbs and beating a rival union organizer. The local members believed they were promised the jobs. Gibbs subsequently lost his superintendent job and haulage contract, and claimed further business losses due to a concerted union plan.
Issue
Did the District Court properly exercise pendent jurisdiction over the state law claim? If so, was the international union liable for the unlawful acts under state law, specifically meeting the "clear proof" standard required by § 6 of the Norris-LaGuardia Act?
Holding
The Court reversed the lower court's judgment. While the District Court properly exercised pendent jurisdiction over the state claim, the evidence did not meet the "clear proof" standard required by § 6 of the Norris-LaGuardia Act to hold the international union liable for the violence.
Rule
Pendent jurisdiction exists when a federal claim has substance and the state and federal claims derive from a common nucleus of operative fact, allowing a federal court to hear the entire case if a plaintiff would ordinarily try all claims together. This power is discretionary, based on judicial economy, convenience, and fairness, but state claims should be dismissed if federal claims fail early or state issues predominate. States may grant compensation for violence in labor disputes, but remedies must be limited to direct consequences of violent conduct. For state tort claims in federal court arising from labor disputes, § 6 of the Norris-LaGuardia Act requires "clear proof" of a union's actual participation, authorization, or ratification of unlawful acts. "Clear proof" means persuading by a substantial margin, more than a bare preponderance, and ratification is not inferred from mere involvement or normal union functions but requires proof of approval or active participation in further actionable acts drawing on previous violence.
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