Thomson v. Gaskill
Headline: Court prevents 41 railroad workers from combining claims to meet federal diversity amount, reverses appeals court, and sends case back because the record fails to show the required $3,000 per plaintiff.
Holding:
- Bars plaintiffs from aggregating separate individual damages to meet diversity amount without proof of common interest.
- Requires plaintiffs to submit contract terms or other proof when jurisdictional amounts are contested.
- Sends case back to allow amendment but leaves merits of seniority dispute undecided.
Summary
Background
Forty-one conductors and brakemen who worked for the Chicago & Northwestern Railway sued the railroad and one of its employees over seniority assignments on the Omaha–Sioux City run. The complaint said trains ran over parts of two divisions and that a preexisting wage-and-rules schedule used mileage percentages to assign work. Since May 1, 1930, the railroad had assigned the run to the other division, and the workers claimed wrongful loss of seniority and damages exceeding $3,000 each. The record, however, did not include the contracts the workers relied on.
Reasoning
The Court focused on whether the federal district court had the required jurisdictional amount and whether the workers could combine their claims. It explained that diversity jurisdiction statutes must be strictly construed and that a plaintiff who is challenged must prove the amount in controversy. Because the record lacked the agreements that would show whether the workers shared a single, undivided right or only separate claims, the Court could not treat their claims as one collective matter. Aggregation of separate individual claims was not permitted merely because the claims came from a common instrument or community of interest. The Court therefore held the district court lacked jurisdiction.
Real world impact
The ruling reverses the appeals court and sends the case back to district court without prejudice to allow the workers to amend and supply necessary proof, such as the contract terms. It leaves the underlying seniority dispute undecided but makes clear that plaintiffs cannot reach federal court by adding up separate individual damages absent proof of a shared, undivided interest.
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