When Kate Warne applied for a job with the Pinkerton Agency, Pinkerton assumed she wanted to cook or clean, but he agreed to try her out as an agent. Assigned to a tough case with high stakes, Warne went undercover and not only found the stolen money, she got almost all of it returned. The Adams Express Case made the reputation of the fledgling Pinkerton Agency, turning it into the biggest, most prestigious detective company in the world. Warne went...