In the Carpenter v. Wabash Railway Co. case of 1939, the Supreme Court ruled on a dispute involving railway labor unions and their employers over collective bargaining agreements. The Brotherhood of Locomotive Firemen and Enginemen (BLFE), representing employees, had entered into an agreement with several railroads including Wabash Railway Company that stipulated specific working conditions for firemen employed by these companies. However, when BLFE attempted to enforce this agreement in court after alleged violations by the railways, they were denied relief on grounds that federal courts lacked jurisdiction over such disputes under the Norris-LaGuardia Act which limited judicial intervention in labor disputes. The Supreme Court reversed this decision stating that while Norris-LaGuardia Act did restrict courts from issuing injunctions in cases involving or growing out of labor disputes, it did not strip them entirely of jurisdiction to enforce lawful contracts between employers and employee representatives like BLFE's collective bargaining agreement with railroads. This ruling clarified how federal law applied to enforcement of union contracts within railroad industry specifically but also more broadly set precedent for future cases concerning interpretation and application of Norris-LaGuardia Act provisions regarding court involvement in labor relations matters.

The dissenting opinion in the Carpenter v. Wabash Railway Co. case argued that the majority's decision was a departure from established principles of law and equity, which could potentially lead to unjust results. The dissent pointed out that under traditional legal rules, when a party breaches a contract, they are liable for all damages resulting directly and naturally from the breach - not just those specifically mentioned in the contract itself. By limiting recovery to only those losses explicitly provided for by contractual stipulations (in this case, demurrage charges), it was feared that parties would be incentivized to break contracts whenever it became economically advantageous to do so without fear of being held accountable for any additional consequential damages suffered by their counterparties as a result of such breaches.