John Walker, appellant, brought a case against George Parker and others, appellees. The dispute was over the ownership of certain land in Mississippi that had been granted to John's father by the Spanish government before it ceded control of the region to the United States. At issue was whether or not this grant could be recognized under U.S. law since it had been made by a foreign power prior to its transfer of authority over the area. The Supreme Court held that while such grants were valid when they were issued, they did not necessarily remain so after sovereignty changed hands; rather, their validity depended on whether or not they had been confirmed by Congress following acquisition of jurisdiction from Spain. In this case however, no confirmation had taken place and thus John's claim for title was denied as he failed to prove his right according to U.S law at that time

In the case of John Walker vs. George Parker and Others, Justice Story delivered a dissenting opinion in which he argued that the court had erred in its decision to deny Walker's claim for damages against Parker. He argued that under Massachusetts law, as well as general principles of equity, Walker was entitled to recover his losses from Parker due to his negligence. Justice Story further noted that even if there were some doubt about whether or not such a recovery could be made under state law, it should still have been allowed given the circumstances of this particular case and because it would serve justice better than denying relief altogether. In conclusion, Justice Story believed that the majority had failed to properly consider all relevant facts when deciding on their ruling and thus denied an equitable remedy where one was warranted by both legal precedent and common sense considerations.