In the 1930 case of Herron v. Southern Pacific Company, the U.S. Supreme Court ruled on a dispute involving an injured railroad worker seeking compensation under federal law. The plaintiff, Mr. Herron, was employed by Southern Pacific Company when he sustained injuries due to alleged negligence and unsafe conditions in his workplace environment. He sought damages under the Federal Employers' Liability Act (FELA), which allows railroad workers to sue their employers for injury or death caused while they are engaged in interstate commerce duties. The main issue before the court was whether FELA applied since Herron's work at the time of his accident did not directly involve interstate commerce activities but rather maintenance tasks within a rail yard that served both intrastate and interstate trains. The Supreme Court held that even though Herron’s specific task at the time of injury may not have been directly related to interstate commerce, it still fell within FELA’s purview because it occurred within a broader context where such activities were routinely performed as part of overall operations necessary for maintaining continuous and efficient transportation services across state lines.

In the dissenting opinion for Herron v. Southern Pacific Company, it was argued that the majority's decision to deny recovery of damages on behalf of a deceased worker's family contradicted previous rulings and interpretations of federal law. The dissent emphasized that under the Federal Employers' Liability Act (FELA), employers are held liable for injuries or death caused by their negligence, regardless if an employee knew about potential risks associated with their work duties. It was pointed out that knowledge of risk doesn't absolve companies from maintaining safe working conditions nor does it negate employees' rights to seek compensation when harm occurs due to employer negligence. Therefore, in this case where a railroad worker died after voluntarily engaging in dangerous tasks without proper safety measures provided by his employer, his family should be entitled to recover damages as per FELA provisions.