I've seen lots of commrnts about this man on the board.here is the real story
Allan Pinkerton was born in Glasgow in Scotland in 1819. A cooper by trade he was active in the Chartist movement as a young man. Disillusioned by the failure to win universal suffrage, Pinkerton emigrated to the United States.
Pinkerton settled in Chicago and became a deputy-sheriff. In 1852 he formed the Pinkerton Detective Agency. The first detective agency in the United States, it solved a series of train robberies. In 1861 the agency was given the task of guarding Abraham Lincoln. While in Baltimore, while on the way to the inauguration, Pinkerton foiled a plot to assassinate the president.
The Pinkerton Detective Agency was a great success. On the facade of his three-story Chicago headquarters was the company slogan, "We Never Sleep". Above this was a huge, black and white eye. The Pinkerton logo was the origin of the term private eye.
Pinkerton became head of the American secret service during theCivil War and between 1867 and 1875 led the pursuit for Frank and Jessie James. In 1875 used an agent, James McParland, to infiltrate the secret organization, the Molly Maguires. McParland's evidence in court resulted in the execution of twenty of its members.
After Allan Pinkerton died in 1884, the Pinkerton Detective Agency was run by his two sons, Robert Pinkerton and William Pinkerton.