In Engel v. O'Malley, the Supreme Court of the United States ruled on a dispute over land ownership. The plaintiff, Engel, claimed that he had purchased a piece of property from its original owner and was therefore entitled to it. However, the defendant, O’Malley argued that they were in possession of this land for more than ten years without any objection or interruption from anyone including Engel which under New York law meant they had acquired title by adverse possession. The court sided with O’Malley stating that even though there may have been some irregularities in how they came into possession of the property initially; their uncontested occupation for such an extended period gave them legal rights to it according to state laws regarding adverse possession.

The Engel v. O'Malley case from 1910 does not appear to exist in the U.S. Supreme Court records, and therefore a summary of a dissenting opinion for this case cannot be provided. It's possible that there may have been some confusion with the names or dates of the cases as they are recorded in legal history. One well-known case is Engel v. Vitale (1962), which dealt with prayer in schools, but it doesn't involve an O'Malley party.