Already America’s first female detective, she’d also saved a President-elect from assassination. She had become a senior private detective years before women were allowed to join a police force in uniform, never mind as detectives. She was a trailblazerWarne was a deeply memorable woman whom Pinkerton named as one of his best five detectives of all time.
Before hiring them on, Pinkerton would tell female applicants, “In my service, you will serve your country better than on the field. I have several female operatives. If you agree to come aboard you will go in training with the head of my female detectives Kate Warne. She has never let me down.”