The Wetzel v. Minnesota Railway Transfer Company case in 1897 revolved around a dispute over land ownership. The plaintiff, Wetzel, claimed that the defendant company had unlawfully taken possession of his property and was seeking compensation for damages. The railway company argued that they were granted the land by an act of Congress to build their railroad line and thus held rightful ownership. The Supreme Court ruled in favor of the railway company, stating that when Congress grants lands to aid in constructing railroads, it is not necessary for patents to be issued before rights vest under such grant. Therefore, even though no patent had been issued at the time when Wetzel purchased his plot from a third party who claimed title under pre-emption laws (laws allowing settlers on public lands to purchase them ahead of others), this did not affect or limit the right already vested in the railroad company by virtue of its congressional grant. This ruling clarified how federal law interacts with state law regarding land grants made by Congress - specifically affirming that federal legislation supersedes conflicting state laws concerning these matters.

The dissenting opinion in the Wetzel v. Minnesota Railway Transfer Company case argued that the plaintiff, Wetzel, was not entitled to damages because he had willingly assumed the risks associated with his employment. The justice contended that it was common knowledge among railway workers that coupling cars could be dangerous and potentially result in injury or death. Therefore, by accepting this job and performing these tasks without objection, Wetzel implicitly agreed to undertake these risks himself. Furthermore, they pointed out there were no allegations of negligence on part of the defendant company; rather it seemed like an unfortunate accident for which nobody should be held financially responsible. This perspective emphasizes personal responsibility and risk assumption within inherently hazardous occupations.