"(25 August 1819 – 1 July 1884) was a Scottish American detective and spy, best known for creating the Pinkerton National Detective Agency. In 1849 Pinkerton was appointed as the first detective in Chicago. In the 1850s, he partnered with Chicago attorney Edward Rucker in forming the North-Western Police Agency, later known as the Pinkerton National Detective Agency and is still in existence today as Pinkerton Consulting and Investigations, a subsidiary of Securitas AB. Pinkerton's business insignia was a wide open eye with the caption "We never sleep."Based on exploits of himself and his agents, some published posthumously, maybe some ghostwritten to promote the agency.
https://en.wikipedia.org/wiki/Allan_P...
