About Charlie Siringo
Lived 1855 – 1928 (aged 73). Charlie Siringo was an American detective, writer, lawyer, private investigator, cowboy and bounty hunter, known for Pinkerton National Detective Agency.
Charles Angelo Sartana Siringo (February 7, 1855 – October 18, 1928) was an American lawman, detective, bounty hunter, and agent for the Pinkerton National Detective Agency during the late 19th and early 20th centuries.
Early life
Siringo was born on Matagorda Peninsula in Matagorda County, Texas, to an Irish immigrant mother and an Italian immigrant father of Sicilian origins who arrived from Genoa, where his family had long since moved. His father died when Siringo was a year old. He attended public school until the start of the American Civil War, then took his first cowpuncher lessons in 1867 before moving to St. Louis after his mother remarried. Siringo attended Fisk public school for a time while in New Orleans but then started work as a cowboy for Abel Head "Shanghai" Pierce in April 1871, after returning to Texas.
In the early 1890s, he found himself assigned to office work in the Denver office of the agency, work which he greatly despised. During that time, he worked with noted Pinkerton agent, gunman, and later assassin Tom Horn. He greatly admired Horn's talents and skills in tracking down suspects, but reflected later that Horn had a dark side that could easily be accessed when need be.
In February 1891, assuming the name Charles T. Leon, Siringo undertook a 6-month investigation for New Mexico Governor L. Bradford Prince. Siringo investigated the attempted assassination of Elias S. Stover, Thomas B. Catron, T.B. Mills, and Joseph Anchete. Siringo was able to infiltrate Las Gorras Blancas and the Knights of Labor, while understanding their relationship with the Santa Fe Ring. The investigation was called off before Siringo could gather enough evidence to definitively state who was behind the shooting. Siringo did, however, purchase 265 acres near Santa Fe, New Mexico, and established his Sunny Slope Ranch. Located north of Arroyo Chamiso, Siringo built a two-room adobe home, with a view of the Sangre de Cristo Mountains. After 14 months, which included the Coeur d'Alene, Idaho labor strike of 1892, Siringo's undercover work and testimony helped convict 18 union leaders. who had been shot and killed during the pursuit of the robbers.
In 1907, during the trial of the Western Federation of Miners' Bill Haywood, Siringo was assigned as a bodyguard for Albert Horsley. After the acquittal, Siringo warned Idaho Governor Frank Gooding of plans to lynch Haywood, Pettibone, Charles Moyer, and Haywood's lawyer Clarence Darrow, which prevented the hanging. The election was unique, owing to fraud by Democrats and Republicans that resulted in Colorado having three different governors seated during the course of one day. In the book, Siringo defended his work against the leadership of the Western Federation of Miners, but he admitted "one dark blot on my conscience" for his work as an informant among the coal miners of southern Colorado, for the Colorado Fuel and Iron Company: "... I hated to report their threats against the greedy corporation which treated them as slaves."
The Pinkerton Agency succeeded in suppressing the book, charging Siringo with criminal libel, and calling for his arrest and extradition to Chicago. New Mexico Governor McDonald denied the extradition request. Yet, Pinkerton was successful in getting a court order impounding the book's plates and remaining copies.
In 1920, Siringo published the History of "Billy the Kid". By 1922, Siringo's financial difficulties required relinquishing his Santa Fe ranch, and moving to Los Angeles. In 1924, Siringo played the part of an old cowboy in the movie Nine Scars Make a Man. In 1925, Siringo served as a consultant for William S. Hart's Tumbleweeds.
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Important facts
People in Charlie Siringo's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Charlie Siringo's
Frequently asked questions
Who was Charlie Siringo?
American law enforcement officer (1855–1928)
When was Charlie Siringo born?
Charlie Siringo was born on 7 February 1855 in Matagorda County.
When did Charlie Siringo die?
Charlie Siringo died on 18 October 1928 in Altadena.
What was Charlie Siringo's occupation?
Charlie Siringo was a detective, writer, lawyer, private investigator, cowboy and bounty hunter.
What was Charlie Siringo known for?
Charlie Siringo was known for Pinkerton National Detective Agency.
What nationality was Charlie Siringo?
Charlie Siringo was American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Charlie Siringo. https://biography.guide/charlie-siringo/
MLA: "Charlie Siringo." Biography.guide, https://biography.guide/charlie-siringo/.
Chicago: "Charlie Siringo." Biography.guide. https://biography.guide/charlie-siringo/.
Data last updated: 2026-09-22 · Spot an error? Report a correction.
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