Allan Pinkerton founded a detective agency in Chicago that originally gained fame for solving a series of train robberies and later became known for helping management break strikes by the new labor unions.
Pinkerton became famous when he claimed to have foiled a plot to assassinate president-elect Abraham Lincoln, who later hired Pinkerton agents for his personal security during the Civil War. After the war, Pinkerton returned to running his Agency, which made its name in a number of high-profile cases, including that of Frank and Jessie James. By the 1870s, the agency had the world's largest collection of photographs of criminals and suspects.
Pinkerton became famous when he claimed to have foiled a plot to assassinate president-elect Abraham Lincoln, who later hired Pinkerton agents for his personal security during the Civil War. After the war, Pinkerton returned to running his Agency, which made its name in a number of high-profile cases, including that of Frank and Jessie James. By the 1870s, the agency had the world's largest collection of photographs of criminals and suspects.









