Pinkerton (detective agency) Anti-Pinkerton Act in 1893, federal law has stated that an "individual employed by the Pinkerton Detective Agency, or similar organization, may not be employed by the Government of the United States or the government of the District of Columbia." In the 1870s, Franklin B. Gowen, then president of the Philadelphia and Reading Railroad, hired the agency to "investigate" the labor unions in the company's mines. A Pinkerton agent, James McParland, using the alias "James McKenna", infiltrated the Molly Maguires, a 19th-century secret society of mainly Irish-American coal miners, leading to the downfall of the labor organization. The incident inspired Arthur
Baldwin–Felts Detective Agency the early 1890s by William Gibbony Baldwin as the Baldwin Detective Agency. Baldwin, the senior member of the firm, was a native of Tazewell County, Virginia. An avid reader of detective novels in his youth, Baldwin was a small storekeeper in his early days. He then studied dentistry but left that profession to become a detective. He began his career in 1884 with the Eureka Detective Agency in Charleston, West Virginia. After founding the Baldwin Detective Agency, he then moved to Roanoke, Virginia, to oversee security operations in the Norfolk & Western Railway's coalfield district, later being appointed chief special