In the case of Atchison, Topeka & Santa Fe Railway Company v. O'Connor in 1911, the U.S Supreme Court ruled on a dispute involving land rights and property ownership. The railway company claimed that it had been granted certain lands by Congress under an act passed in 1863 to aid in building its railroad line. However, O’Connor contested this claim arguing that he held rightful title to part of these lands through preemption rights which precede the grant given to the railway company by Congress. The court sided with O'Connor stating that his preemption right was superior as it existed before any congressional action granting land to railroads for construction purposes took place. Therefore, even though Congress intended for such grants to be made available immediately upon passage of legislation supporting railroad development, they could not supersede existing valid claims like those asserted by preemptors such as O’Connor.

The dissenting opinion in the case of Atchison, Topeka & Santa Fe Railway Company v. O'Connor argued that the majority's decision was a departure from established principles of law and equity. The dissent contended that the railway company should not be held liable for damages caused by a fire started by sparks from one of its locomotives because there was no evidence to suggest negligence on part of the company or its employees. It further asserted that it is unreasonable to hold companies responsible for damages resulting from their operations unless those damages were foreseeable and could have been prevented through reasonable care. The dissent also pointed out inconsistencies in how similar cases had been handled previously, arguing for more consistent application of legal principles.