Reading Time: 10 mins
\",\"name\":\"91983175-58b3-4956-9d1f-b86c0db08925\"},{\"type\":\"HEADING_3\",\"value\":\"In 1904, Pinkerton's National Detective Agency (PDNA) found itself investigating a crime uncomfortably close to home: misuse of its own name.
\",\"name\":\"e0d10025-01ca-4080-9c3a-89780e7bd964\"},{\"type\":\"PARAGRAPH\",\"value\":\"The irony was hard to miss. For decades, Pinkerton’s had investigated patent and copyright infringements, brand abuses, and contract violations on behalf of clients and their attorneys. Yet here was an imitation “Pinkerton” agency, using something very close to the PDNA name and mystique to run what was, in modern terms, a trademark‑infringement and mail‑fraud scheme.
\",\"name\":\"0128900a-6ad7-44d1-a0df-098725ed180d\"},{\"type\":\"HEADING_3\",\"value\":\"By the early 1900s, PDNA had been operating for more than 50 years. Founded by Allan Pinkerton in the 1850s, the Agency had built a widely recognized reputation and maintained offices across the United States and beyond.
\",\"name\":\"127a04d2-6961-4d63-8311-40d030bf0290\"},{\"type\":\"PARAGRAPH\",\"value\":\"In June 1904, a new organization appeared in Milwaukee, Wisconsin, calling itself “Pinkerton's United States Detective Agency (PUSDA).” Articles of incorporation listed a David W. Pinkerton as principal, with F. J. Sullivan as superintendent, S. A. Butler as manager, and J. O. Savage as attorney, operating from the Mack Block at the corner of East Water and Wisconsin Streets. Their letterhead looked impressive. Their signage looked official.
\",\"name\":\"30f0c124-2d33-4148-b3f1-99b3ba3afb83\"},{\"type\":\"PARAGRAPH\",\"value\":\"The problem was simple enough. It was not Pinkerton’s National Detective Agency. It merely wanted people to think it was. It should be noted that no evidence suggests David W. Pinkerton was related to Allan Pinkerton or the Agency.
\",\"name\":\"0acdc28e-e6ca-4f76-8ca9-cebf46e8e946\"},{\"type\":\"HEADING_3\",\"value\":\"The Milwaukee outfit advertised aggressively in newspapers around the country: “Detectives—Every locality, good salary, experience unnecessary. Pinkertons U.S. Detective Agency, Milwaukee, Wis.”
\",\"name\":\"a5797a55-4304-4d49-baf8-3cb71e570c8e\"},{\"type\":\"PARAGRAPH\",\"value\":\"Anyone who responded received a polished pitch. For $3.00, the applicant would be sent a “Regulation Detective Star,” credentials, a certificate of membership, business cards, and a handbook called The Detective Adviser, along with a subscription to Pinkerton's International Detective Review.
\",\"name\":\"54bc364a-023f-4358-9ad3-13afe5b655fb\"},{\"type\":\"PARAGRAPH\",\"value\":\"Experience, applicants were told, was “not essentially necessary.” That part, at least, appears to have been accurate. And soon they were encouraged to invest $15.00 more for a large revolver, handcuffs, and other accoutrements.
\",\"name\":\"c04b9671-2634-4c06-aa03-7c62d7c03065\"},{\"type\":\"PARAGRAPH\",\"value\":\"The Rochester Herald later reported the arrangement in terms that were difficult to improve upon: applicants sent in their money and received a commission, a badge, and instructions on detective work. They were promised $4.00 a day for detective work. They were never actually asked to work. (PDNA operatives were paid a salary of $15-20 dollars per week.)
\",\"name\":\"e9413f06-d575-4dd6-935b-7c66333cb3d5\"},{\"type\":\"PARAGRAPH\",\"value\":\"Internal Pinkerton correspondence and postal records suggest the scheme may have put as many as a thousand badges into circulation.
\",\"name\":\"13c90a46-76d1-4ac7-bcf9-ea7311c007ab\"},{\"type\":\"PARAGRAPH\",\"value\":\"In Buffalo, a young man named Leo Wagner responded to an advertisement, sent money, and received the standard package: membership certificate, instructional letters, and a plated star bearing the “Pinkerton’s United States Detective Agency” inscription. In St. Louis, a Mr. William Inman did the same, eventually walking into the St. Louis Pinkerton office with his badge and papers, wanting to know if he was, in fact, employed by the famous Agency whose name he had seen in the newspapers.
\",\"name\":\"5f4d5ffd-9cee-460d-b2f0-6e7ddc87163c\"},{\"type\":\"PARAGRAPH\",\"value\":\"Some recipients were merely disappointed when the truth came out. Others carried the badges as though they were genuine credentials. An amateur detective from PUSDA tried to arrest two burglars in a barn in Monroe County, New York, near Rochester. He flashed his large, shiny badge, but the burglars did not treat it—or him—as official. People in the area said they heard his frantic cries for help and saw him finally break away and run.
\",\"name\":\"9defc362-b8e0-48eb-954a-94f607208e81\"},{\"type\":\"PARAGRAPH\",\"value\":\"Others used the badges for illicit activities, such as extortion. The Rochester Herald also reported a shakedown of two travelers at the city’s Central Station. And yet another, William H. Moody of Milwaukee, WI, carrying a business card stating he was a representative of PUSDA, was arrested in Roanoke, Virginia, on suspicion of robbery. In Philadelphia, it was the same story. The city's Chief of Detectives has arrested several “fake detectives.”
\",\"name\":\"d6c0ee1f-21ac-4c8e-8ace-1f99c144016a\"},{\"type\":\"PARAGRAPH\",\"value\":\"That was bad for the brand. It was also bad for everyone else.
\",\"name\":\"8b8e665c-edd1-4aff-bb21-d52f0c142556\"},{\"type\":\"HEADING_3\",\"value\":\"Pinkerton’s response was fast and methodical. Internal files show the Agency doing what it would do for any client facing impersonation, fraud, or infringement: gather documents, identify victims, preserve evidence, and coordinate across offices.
\",\"name\":\"6811ac24-af93-4abe-b2aa-525533958e9c\"},{\"type\":\"PARAGRAPH\",\"value\":\"Pinkerton moved on two fronts: civil action and postal pressure.
\",\"name\":\"1486327d-ec89-480c-aeac-e93849d8f6c4\"},{\"type\":\"PARAGRAPH\",\"value\":\"In the U.S. Circuit Court for the Eastern District of Wisconsin, Pinkerton filed suit against “Pinkerton's United States Detective Agency.” The complaint detailed the Agency’s 50-year history, the long-established value of the Pinkerton name, and the allegation that the Milwaukee defendants had adopted a confusingly similar name to deceive the public and trade on Pinkerton’s reputation.
\",\"name\":\"dc10f1a3-711b-4c3c-9dff-7034aae3bb0b\"},{\"type\":\"PARAGRAPH\",\"value\":\"In modern terms, it reads like a trademark and unfair competition case. Pinkerton alleged that the Milwaukee agency was using the Pinkerton name in advertisements, certificates, credentials, and badges to make people believe the two businesses were connected.
\",\"name\":\"b7e624e1-413e-469d-b1a5-d6648d3e7706\"},{\"type\":\"PARAGRAPH\",\"value\":\"At the same time, PDNA pressed postal authorities to investigate the operation as a fraud carried out through the mail. Internal correspondence shows Pinkerton working with inspectors and pushing for action against the Milwaukee concern and its related names, including “United States Detective Agency” and “International Detective Agency.”
\",\"name\":\"bdceece3-d11c-432f-80a9-0b4b2e7243d1\"},{\"type\":\"PARAGRAPH\",\"value\":\"The postal angle mattered. This was, after all, a business model built on mailed advertisements, mailed payments, and mailed detective badges.
\",\"name\":\"434f9c21-f070-4e66-98b7-4f8b5ceb9934\"},{\"type\":\"PARAGRAPH\",\"value\":\"In July 1904, the court issued an injunction restraining the Milwaukee operation from using the Pinkerton name.
\",\"name\":\"38f03f4b-d5cc-4a3b-83ea-75c55cc14d29\"},{\"type\":\"WIDGET\",\"value\":{\"content\":\"“We are satisfied that this is a scheme to defraud.” \\n— Internal Pinkerton correspondence, Chicago office, 1904 \",\"center\":false},\"name\":\"quote_text\"},{\"type\":\"PARAGRAPH\",\"value\":\"Meanwhile, postal inspectors continued their investigation. Internal Pinkerton correspondence from Chicago records a report recommending a fraud order against the Milwaukee agency and associated names, stating, “We are satisfied that this is a scheme to defraud.” The Post Office ordered mail addressed to “Pinkertons United States Detective Agency” held its mail—nearly a thousand letters—in place, forcing the defendants to seek other names and methods to receive correspondence and payments.
\",\"name\":\"82d8c9d1-ecb0-4666-a4c9-53c87b707412\"},{\"type\":\"PARAGRAPH\",\"value\":\"A later letter from A. J. Haskins of the “United States Detective Agency” describes how, after the injunction and mail hold, Pinkerton’s United States Detective Agency was “forced to suspend business.” He called his own outfit “in a measure the successors of Pinkerton's United States Detective Agency” but explicitly disclaimed responsibility for their contracts. He offered ex-members a new badge and credentials package (with The Detective Adviser and International Detective Review) for $2.00.
\",\"name\":\"f84a32fc-150b-4f1b-9978-61f0f60cae26\"},{\"type\":\"PARAGRAPH\",\"value\":\"By July 16, 1904, there was an attempt to rebrand as “Pinkerton’s United States Detective Training School,” selling a seven-part detective training course — covering elementary principles, shadowing, claim adjustment, railway work, department‑store and hotel work, character study, and commercial/criminal/civil law. They claimed it was the “Only Training School of its Kind in the World,” essentially the same correspondence curriculum previously marketed as the International Detective Training School.
\",\"name\":\"d0f9df8b-a503-43bf-9379-8cfc765d0b11\"},{\"type\":\"PARAGRAPH\",\"value\":\"Students who completed the course were given a “Certificate of Graduation” stating that mastering all seven would qualify them to enter “the professional detective ranks.” The course was sold at a $15.00 discount at the low, low promotional price of $6.00 (generously marked down from $21.00).
\",\"name\":\"81f46c31-380a-4e90-a7e9-31a89a7d8f27\"},{\"type\":\"PARAGRAPH\",\"value\":\"PDNA monitored the new Milwaukee outfits closely and issued a warning to law enforcement agencies that these Milwaukee outfits were not connected to PDNA — that their badges and papers should not be taken as genuine, and that the owners of such credentials might have been victims of fraud themselves.
\",\"name\":\"11ece93c-db99-46c7-97fd-103073fb992e\"},{\"type\":\"PARAGRAPH\",\"value\":\"From a brand‑protection standpoint, it was an early, analog version of what many organizations do today: publicize known impersonation schemes to law enforcement and the public to limit confusion, protect victims, and preserve the integrity of the brand.
\",\"name\":\"c9f74357-a1e3-45c2-92f0-0c8deb54130c\"},{\"type\":\"PARAGRAPH\",\"value\":\"Different century, familiar pattern.
\",\"name\":\"8ea91a35-4ab4-4fef-9cb8-be08221505c9\"},{\"type\":\"HEADING_3\",\"value\":\"The case stands out not just because it was strange, but because it was strangely on-brand. The Agency that investigated infringement and misuse for others found itself handling a case of brand confusion, counterfeit credentials, and deceptive solicitation directed at the public under its own name.
\",\"name\":\"6aad11d7-3525-4d29-9337-b9451e0fbf1d\"},{\"type\":\"PARAGRAPH\",\"value\":\"There is another historical twist.
\",\"name\":\"6f101d47-a2c9-40e1-bf98-f4599cdb4bf4\"},{\"type\":\"PARAGRAPH\",\"value\":\"At the time Allan Pinkerton founded his Agency, he also served as a Special Mail Agent for the United States Post Office, responsible for tracing mail robbers and parties who plundered the mail in a territory that included Wisconsin, Michigan, Illinois, Indiana, and Iowa. In that role, he pursued schemes that misused the mails for theft and fraud.
\",\"name\":\"2ad18ecc-52cd-45d5-96ae-b07dfe3a83ac\"},{\"type\":\"HEADING_3\",\"value\":\"The props have changed. The pattern has not.
\",\"name\":\"efdd249e-cc4a-4833-9636-249af7569b2a\"},{\"type\":\"PARAGRAPH\",\"value\":\"In 1904, the problem was newspaper ads, mailed applications, and nickel-plated detective stars. Today it may be fake domains, counterfeit credentials, cloned websites, spoofed social accounts, or unauthorized use of a company’s name, marks, and reputation.
\",\"name\":\"7683bcff-8da6-4d35-bf46-55c7d7998fde\"},{\"type\":\"LIST\",\"value\":\"That is what Pinkerton did in 1904. It documented the scheme, collected the evidence, worked across jurisdictions, engaged postal authorities, and sought relief in court.
\",\"name\":\"fe577aa4-0037-4189-bb82-510c07259f6b\"},{\"type\":\"PARAGRAPH\",\"value\":\"It is still the work.
\",\"name\":\"b7dcfa98-284d-4ac2-8202-427dbb3f4130\"},{\"type\":\"PARAGRAPH\",\"value\":\"When a trusted name is misused, the damage can extend well beyond reputation. It can confuse the public, expose people to fraud, and put bad actors behind a good name. The whole Milwaukee affair made that point clearly enough, with only a $3.00 fee and a detective star to prove it.
\",\"name\":\"95c5ea5e-c6d1-4c52-8d6c-9c03a4499fbf\"},{\"type\":\"PARAGRAPH\",\"value\":\"To learn more about how Pinkerton supports clients facing brand misuse, fraud, and other complex matters, visit our corporate investigations page. Or, for more episodes in the Agency’s long history, explore additional stories from Pinkerton’s past.
\",\"name\":\"d5118ede-0bea-48db-aa67-9edffef6813d\"},{\"type\":\"WIDGET\",\"value\":{\"content\":\"SOURCES
Pinkerton’s National Detective Agency. Administrative Files: Infringement Case Against Pinkerton’s United States Detective Agency (1904). Pinkerton’s National Detective Agency, Part A: Administrative File, 1857–1999; Legal File. ProQuest Historical Collections.
Rochester Herald. “Better Watch Out: A Detective Will Get You If You Are Not Careful.” Rochester Herald, 15 Aug. 1904, Monday edition.