In the case of McDonald v. Thompson in 1901, the United States Supreme Court ruled on a dispute over land ownership. The plaintiff, McDonald, claimed that he had purchased a piece of property from an individual who was not legally allowed to sell it because they were not its rightful owner. The defendant, Thompson, argued that he was the true owner of this property and therefore entitled to keep it despite any previous transactions made by other parties without his consent or knowledge. The court ultimately sided with Thompson after determining that he had indeed been in possession of this land for many years prior to its alleged sale by another party to McDonald. They found no evidence suggesting that Thompson ever willingly transferred his rights as an owner or knowingly permitted others to act on his behalf regarding matters related to this property. This decision reinforced legal principles concerning real estate transactions and ownership rights under U.S law at the time; specifically highlighting how long-term possession can establish valid claims even when conflicting sales occur unbeknownst to such possessors.

The McDonald v. Thompson case does not have a publicly available dissenting opinion recorded in the annals of U.S Supreme Court history, making it impossible to provide a summary for such. It's important to note that not all cases will have dissenting opinions as they are only written when there is disagreement with the majority ruling and justices choose to express their contrasting views or interpretations of law.