Huidekoper v. Locomotive Works was a case heard by the United States Supreme Court in 1878. The case involved a contract dispute between Huidekoper, a Pennsylvania resident, and the Locomotive Works, a New York corporation. Huidekoper had contracted with the Locomotive Works to purchase a locomotive engine, but the Locomotive Works failed to deliver the engine as promised. Huidekoper sued the Locomotive Works for breach of contract, and the case eventually made its way to the Supreme Court. The Supreme Court held that the contract between Huidekoper and the Locomotive Works was valid and enforceable. The Court noted that the contract was made in New York, and that the Locomotive Works was a New York corporation. The Court also held that the contract was not voidable due to the fact that Huidekoper was a Pennsylvania resident. The Court concluded that the contract was valid and enforceable, and that Huidekoper was entitled to damages for the breach of contract. In conclusion, the Supreme Court held that the contract between Huidekoper and the Locomotive Works was valid and enforceable. The Court found that the contract was made in New York, and that the Locomotive Works was a New York corporation. The Court also held that the contract was not voidable due to the fact that Huidekoper was a Pennsylvania resident. The Court concluded that Huidekoper was entitled to damages for the breach of contract.

In Huidekoper v. Locomotive Works, the Supreme Court was asked to determine whether a contract between two parties could be enforced even though it had been made without consideration. The majority opinion held that the contract was valid and enforceable because of its “moral obligation” clause, which stated that each party would fulfill their respective obligations in good faith. Justice Field dissented from this ruling, arguing that such an agreement should not be considered binding since there was no exchange of value or consideration given by either side for entering into the contract. He argued further that if contracts were allowed to stand on moral considerations alone then any person could make promises with impunity and escape liability when they failed to perform them due to lack of consideration.