Molly Maguires
The Molly Maguires were Irish Catholic when there was frequent prejudice against such persons. It was a time of rampant beatings and murders in mining districts, some committed by the Mollies. Franklin B. Gowen, the President of the Philadelphia and Reading Railroad, and of the Philadelphia and Reading Coal and Iron Company, "the wealthiest anthracite coal mine owner in the world", hired Allan Pinkerton's services to deal with the Molly Maguires. Pinkerton assigned McParland to the job. McParland successfully infiltrated the secret organization, becoming a secretary for one of its local groups. McParland turned in reports daily, eventually collecting evidence of murder plots and intrigue, passing this information along to Benjamin Franklin, his Pinkerton manager. He also began working secretly with Robert Linden, a Pinkerton agent assigned to the Coal and Iron Police for the purpose of coordinating the eventual arrest and prosecution of members of the Molly Maguires.