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Kate Warne (1833 – January 28, 1868) was an American law enforcement officer known as the first female
detective A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads th ...
, in 1856, in the
Pinkerton Detective Agency Pinkerton is a private security guard and detective agency established around 1850 in the United States by Scottish-born cooper Allan Pinkerton and Chicago attorney Edward Rucker as the North-Western Police Agency, which later became Pinkerton ...
and the United States.


Pre–Civil War


Early detective work: 1856–1861

Very little is known about Kate Warne prior to her working for
Allan Pinkerton Allan J. Pinkerton (August 25, 1819 – July 1, 1884) was a Scottish cooper, abolitionist, detective, and spy, best known for creating the Pinkerton National Detective Agency in the United States and his claim to have foiled a plot in 1861 to a ...
, except that she was born in Erin, Chemung County, New York and was a widow by age 23. Pinkerton, in his book ''The Spy of the Rebellion'' (1883), described her as:
commanding person, with clear cut, expressive features ... a slender, brown-haired woman, graceful in her movements and self-possessed. Her features, although not what could be called handsome eautiful were decidedly of an intellectual cast ... her face was honest, which would cause one in distress instinctly icto select her as a confidante.
Warne walked into the
Pinkerton Detective Agency Pinkerton is a private security guard and detective agency established around 1850 in the United States by Scottish-born cooper Allan Pinkerton and Chicago attorney Edward Rucker as the North-Western Police Agency, which later became Pinkerton ...
in response to an advertisement in a local newspaper. When she walked into Pinkerton's Chicago office, according to Pinkerton company records, he further described her acquaintance:
ewas surprised to learn Kate was not looking for clerical work, but was actually answering an advertisement for detectives he had placed in a Chicago newspaper. At the time, such a concept was almost unheard of. Pinkerton said "It is not the custom to employ women detectives!" Kate argued her point of view eloquently – pointing out that women could be "most useful in worming out secrets in many places which would be impossible for a male detective." A Woman would be able to befriend the wives and girlfriends of suspected criminals and gain their confidence. Men become braggarts when they are around women who encourage them to boast. Kate also noted, Women have an eye for detail and are excellent observers.
Warne's arguments swayed Pinkerton, who employed Warne as the first female detective. Pinkerton soon had a chance to put Warne to the test. In 1858, Warne was involved in the case of
Adams Express Company Adams Funds, formerly Adams Express Company, is an investment company made up of Adams Diversified Equity Fund, Inc.(NYSE: ADX), a publicly traded diversified equity fund, and Adams Natural Resources Fund Inc. (NYSE: PEO), formerly Petroleum & Res ...
embezzlement Embezzlement is a crime that consists of withholding assets for the purpose of conversion of such assets, by one or more persons to whom the assets were entrusted, either to be held or to be used for specific purposes. Embezzlement is a type ...
s, where she was successfully able to bring herself into the confidence of the wife of the prime suspect, Mr. Maroney. She thereby acquired valuable evidence leading to the husband's conviction. Mr. Maroney was an
expressman An expressman (pl. ''expressmen'') refers to anyone who has the duty of packing, managing, and ensuring the delivery of any cargo. During the late 19th and early 20th centuries, an expressman was someone whose responsibility it was to ensure the sa ...
living in Montgomery, Alabama. The Maroneys stole $50,000 from the
Adams Express Company Adams Funds, formerly Adams Express Company, is an investment company made up of Adams Diversified Equity Fund, Inc.(NYSE: ADX), a publicly traded diversified equity fund, and Adams Natural Resources Fund Inc. (NYSE: PEO), formerly Petroleum & Res ...
. With Warne's help, $39,515 was returned. Mr. Maroney was convicted and sentenced to ten years in
Montgomery, Alabama Montgomery is the capital city of the U.S. state of Alabama and the county seat of Montgomery County. Named for the Irish soldier Richard Montgomery, it stands beside the Alabama River, on the coastal Plain of the Gulf of Mexico. In the 202 ...
. In 1860, Allan Pinkerton put Warne in charge of his new Female Detective Bureau.


The Baltimore Plot

In 1861, Allan Pinkerton was hired by Samuel H. Felton, president of the
Philadelphia, Wilmington and Baltimore Railroad The Philadelphia, Wilmington and Baltimore Railroad (PW&B) was an American railroad that operated independently from 1836 to 1881. It was formed in 1836 by the merger of four state-chartered railroads in three Middle Atlantic states to create a ...
, to investigate
secession Secession is the withdrawal of a group from a larger entity, especially a political entity, but also from any organization, union or military alliance. Some of the most famous and significant secessions have been: the former Soviet republics le ...
ist activity and threats of damage to the railroad in
Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...
. Pinkerton went to work placing agents at various points in Maryland to investigate this potential activity. As the investigation proceeded, Pinkerton became aware that the activity in Maryland did not just end with the railroad: it also included the
president-elect An ''officer-elect'' is a person who has been elected to a position but has not yet been installed. Notably, a president who has been elected but not yet installed would be referred to as a ''president-elect'' (e.g. president-elect of the Unit ...
,
Abraham Lincoln Abraham Lincoln ( ; February 12, 1809 – April 15, 1865) was an American lawyer, politician, and statesman who served as the 16th president of the United States from 1861 until his assassination in 1865. Lincoln led the nation thro ...
. Pinkerton received permission to continue his investigation and focus on the possible assassination plot. Warne was one of five agents sent to
Baltimore, Maryland Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...
, on February 3, 1861, to investigate the hotbed of secessionist activity. During the investigation, evidence unveiled a plot to
assassinate Assassination is the murder of a prominent or important person, such as a head of state, head of government, politician, world leader, member of a royal family or CEO. The murder of a celebrity, activist, or artist, though they may not have a ...
Lincoln on his way to take office. Under the aliases Mrs. Cherry and Mrs. M. Barley (M.B.), Warne tracked suspicious movement among the Baltimore secessionists. It was in part through her undercover work in the guise of:
rich southern lady visiting Baltimore with a thick southern accent that apparently Mrs. Warne infiltrated
secession Secession is the withdrawal of a group from a larger entity, especially a political entity, but also from any organization, union or military alliance. Some of the most famous and significant secessions have been: the former Soviet republics le ...
ist social gatherings, in the Baltimore area, places such as the classy Barnum Hotel (''Barnum's City Hotel''), posing as a flirting "
Southern belle Southern belle () is a colloquialism for a debutante in the planter class of the Antebellum South. Characteristics The image of a Southern belle is often characterized by fashion elements such as a hoop skirt, a corset, pantalettes, a wide-b ...
" and was quick to not only verify that there was a plot to
assassinate Assassination is the murder of a prominent or important person, such as a head of state, head of government, politician, world leader, member of a royal family or CEO. The murder of a celebrity, activist, or artist, though they may not have a ...
Lincoln, she developed details of how the assassination was going to occur.
Pinkerton had agents across Maryland, but it was Warne specifically who supplied many of the key details that led Pinkerton to believe that the plot was imminent. Warne had befriended secessionists in Maryland and collected many details about the plot to assassinate Lincoln. The president-elect, Abraham Lincoln, was traveling from his home in
Springfield, Illinois Springfield is the capital of the U.S. state of Illinois and the county seat and largest city of Sangamon County. The city's population was 114,394 at the 2020 census, which makes it the state's seventh most-populous city, the second largest o ...
, to the Capital via a train tour that was to stop at notable cities along the way. His published program showed that Lincoln's last leg of the journey was from
Harrisburg, Pennsylvania Harrisburg is the capital city of the Commonwealth of Pennsylvania, United States, and the county seat of Dauphin County. With a population of 50,135 as of the 2021 census, Harrisburg is the 9th largest city and 15th largest municipality in Pe ...
, to
Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
Due to the configuration of the rail system, all southbound trains required a transfer to be made in
Baltimore, Maryland Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...
. The tracks from points north ended at Calvert Street and the tracks heading south started at Camden Street (now the
Camden Yards station Camden Station, now also referred to as Camden Street Station, Camden Yards, and formally as the Transportation Center at Camden Yards, is a train station at the intersection of South Howard and West Camden Streets in Baltimore, Maryland, and is ...
). The distance between these two stations was about a mile by carriage ride. The secessionist plot to kill Lincoln was:
just as Mr. Lincoln would be passing through the narrow vestibule of the Depot at Calvert St. Station, to enter his carriage. A row or fight was to be got up by some outsiders to quell which the few policemen at the Depot would rush out, thus leaving Mr. Lincoln entirely unprotected and at the mercy of a mob of Secessionists who were to surround him at that time. A small Steamer had been chartered and was lying in one of the Bays or little streams running into the
Chesapeake Bay The Chesapeake Bay ( ) is the largest estuary in the United States. The Bay is located in the Mid-Atlantic (United States), Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula (including the parts: the ...
, to which the murderers were to flee and it was immediately to put off for Virginia.
After seeing the pieces of the plot coming together, Pinkerton directed Kate Warne to take the 5:10 evening train to New York City on the morning of February 18. Once there, she was to set up a meeting with
Norman B. Judd Norman Buel Judd (January 10, 1815 – November 11, 1878) was a U.S. Representative from Illinois, and the grandfather of U.S. Representative Norman Judd Gould of New York. Born January 10, 1815 in Rome, New York, son of Norman Judd and Cath ...
and give him a letter from Pinkerton outlining the known details of the assassination attempt. After receiving the details of the
Baltimore Plot The Baltimore Plot was a conspiracy in late February 1861 to assassinate President-elect Abraham Lincoln en route to his inauguration. Allan Pinkerton, founder of the Pinkerton National Detective Agency, played a key role by managing Lincoln's secu ...
from Warne, Judd set up a meeting between himself, Pinkerton, and Lincoln on February 21. At this meeting, Lincoln was doubtful of the existence of an assassination plot or that if such a plot existed that it should be taken seriously. However, a second independent source confirmed the plot by way of
Frederick W. Seward Frederick William Seward (July 8, 1830 – April 25, 1915) was an American politician and member of the Republican Party who twice served as the Assistant Secretary of State. The son of United States Secretary of State William H. Seward, ...
, son of
William H. Seward William Henry Seward (May 16, 1801 – October 10, 1872) was an American politician who served as United States Secretary of State from 1861 to 1869, and earlier served as governor of New York and as a United States Senator. A determined oppon ...
(the secretary of state–designate). From this point, Lincoln agreed that the assassination plot was plausible enough to take action. Lincoln decided to avoid hazard where it was not necessary; however, he refused to cancel any of his scheduled plans in Harrisburg. His agenda included: giving three speeches, raising of the American flag at
Independence Hall Independence Hall is a historic civic building in Philadelphia, where both the United States Declaration of Independence and the United States Constitution were debated and adopted by America's Founding Fathers of the United States, Founding Fa ...
, and attending a high-profile dinner. Train arrangements were made accordingly that allowed Lincoln to fulfill his scheduled duties in Harrisburg. It was not until 5:45 at night that there was any deviation from his schedule. John George Nicolay, Lincoln's private secretary, interrupted the dinner party to excuse the president-elect. Lincoln then changed into a traveling suit and a soft felt cap. He carried a shawl upon one arm to play the role of an invalid. Pinkerton, meanwhile, had the telegraph lines interrupted to prevent any knowledge of the deviation in Lincoln's schedule. At the station, Warne entered the sleeping car through the rear along with Pinkerton,
Ward Hill Lamon Ward Hill Lamon (January 6, 1828 – May 7, 1893) was a personal friend and self-appointed bodyguard of U.S. President Abraham Lincoln. Lamon was famously absent the night Lincoln was assassinated at Ford's Theatre on April 14, 1865, having bee ...
, and a still-disguised Lincoln. She greeted Lincoln loudly as she would have a true brother. From Harrisburg, Abraham Lincoln rode to Philadelphia by a special
Pennsylvania Railroad The Pennsylvania Railroad (reporting mark PRR), legal name The Pennsylvania Railroad Company also known as the "Pennsy", was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. It was named ...
train. From Philadelphia he went to Baltimore by a special Philadelphia, Wilmington, and Baltimore train on the night of February 22–23. It is said that Kate Warne did not sleep a wink on the overnight trip from Pennsylvania to Washington D.C. The disguises provided by Warne that night enabled Lincoln to make it through Baltimore without recognition and take his seat in the
White House The White House is the official residence and workplace of the president of the United States. It is located at 1600 Pennsylvania Avenue NW in Washington, D.C., and has been the residence of every U.S. president since John Adams in 1800. ...
. It is believed that Pinkerton came up with the slogan to his agency "we never sleep" as a result of Warne's guard of Lincoln that night. Warne was key in the foiled Baltimore assassination plot – not only did she help uncover its details, but she also carried out most of the arrangements to smuggle Lincoln into Washington, D.C. She couriered secret information and set up meetings as well as securing the necessary four berths on a train leaving Philadelphia under the pretext that these berths were for her sick brother and family members. The train pulled out shortly before 11 p.m. and arrived in Baltimore about 3:30 a.m. on February 23. Warne remained in Baltimore as the sleeping cars with Lincoln on board were shifted to another train, which arrived in Washington around 6 a.m.


Civil War: Intelligence work for the Union, 1861–1865

During the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...
, Allan Pinkerton and Kate Warne were used as a
covert Secrecy is the practice of hiding information from certain individuals or groups who do not have the "need to know", perhaps while sharing it with other individuals. That which is kept hidden is known as the secret. Secrecy is often controvers ...
war intelligence-gathering
bureau Bureau ( ) may refer to: Agencies and organizations * Government agency *Public administration * News bureau, an office for gathering or distributing news, generally for a given geographical location * Bureau (European Parliament), the administra ...
. Warne could easily penetrate into Southern social gatherings. She said that women are most useful in worming out secrets in many places which would be impossible for a male detective. Believed to be a mistress of Pinkerton, Warne would often pose as his wife while undercover. She also had an assortment of alias names: Kay Warne, Kay Waren, Kay Warren, Kate Waren, Kate Warren, Kitty Warne, Kitty Waren, Kitty Warren, Kittie Waren, Kittie Warne, and Kittie Warren. Warne was known as "Kitty" to Robert Pinkerton, Allan's brother. Robert Pinkerton often argued with Warne over expenses turned over to the agency, but her relationship with Allan continued for years. After the quelled assassination attempt on president-elect Abraham Lincoln, Kate Warne continued to travel with Allan Pinkerton as his Female Superintendent of Detectives. On April 12, 1861, the
Confederate States of America The Confederate States of America (CSA), commonly referred to as the Confederate States or the Confederacy was an unrecognized breakaway republic in the Southern United States that existed from February 8, 1861, to May 9, 1865. The Confeder ...
's cannons in Charleston began firing on
Fort Sumter Fort Sumter is a sea fort built on an artificial island protecting Charleston, South Carolina from naval invasion. Its origin dates to the War of 1812 when the British invaded Washington by sea. It was still incomplete in 1861 when the Battl ...
. These cannon shells marked the beginning of the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...
. Within nine days, Pinkerton wrote to President Lincoln offering the services of the Pinkerton National Detective Agency. However, before Lincoln could respond, Major General
George B. McClellan George Brinton McClellan (December 3, 1826 – October 29, 1885) was an American soldier, Civil War Union general, civil engineer, railroad executive, and politician who served as the 24th governor of New Jersey. A graduate of West Point, McCl ...
asked Pinkerton to set up a military intelligence service for McClellan's command. Therefore, by the end of July 1861, Pinkerton took Warne,
Timothy Webster Timothy Webster (March 12, 1822 – April 29, 1862) was a British-born American lawman and soldier. He served as a Pinkerton (detective agency), Pinkerton agent and American Civil War spies, Union spy, and was the first spy in the American ...
, and later George Bangs west to set up a headquarters in
Cincinnati, Ohio Cincinnati ( ) is a city in the U.S. state of Ohio and the county seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line wit ...
, to follow McClellan's Ohio division (see also Cincinnati in the Civil War).


Post-Civil War: Continued espionage, 1865–1867

After the Civil War, Kate Warne worked on various high-profile cases. One of these involved the murder of a bank-teller, George Gordon. The murderer got away with $130,000. Pinkerton determined that Gordon was fetching money for a friend or someone who frequented the bank when he was struck on the head behind the ear with a hammer with intent to murder any witnesses of the robbery. Through his investigation, Pinkerton felt certain that his prime suspect, Alexander P. Drysdale, had in fact killed Gordon. However, at this point he did not have enough hard evidence to convict Drysdale; too much was still based on speculation. Therefore, he set a trap for Drysdale so that he would reveal a confession. Warne was sent under cover as a Mrs. Potter and became close friends with Mr. Drysdale's wife. Through this plot, they were able to uncover where Drysdale had hidden the stolen money. Another case for which Kate Warne went undercover was brought about by a Captain Sumner, who was convinced that both his sister, Mrs. Annie Thayer, and a Mr. Pattmore, were attempting to poison Mrs. Pattmore and himself. Warne took the name Lucille and assumed the role of a fortune teller to lure information out of the suspected murderer's confidants. In the meantime, she also continually coordinated Pinkerton's other female detectives in the agency. Pinkerton rented a space for Warne to work as part of her guise. Allan Pinkerton named Kate Warne one of the five best detectives that he had. Her employment by Pinkerton was a significant moment in Women's History. Women were not allowed to be a part of the police force until 1891 and could not be officers until 1908. Pinkerton specifically thanked Kate Warne and
Timothy Webster Timothy Webster (March 12, 1822 – April 29, 1862) was a British-born American lawman and soldier. He served as a Pinkerton (detective agency), Pinkerton agent and American Civil War spies, Union spy, and was the first spy in the American ...
in his memoirs. Both Warne and Webster were key operatives during the
Baltimore Plot The Baltimore Plot was a conspiracy in late February 1861 to assassinate President-elect Abraham Lincoln en route to his inauguration. Allan Pinkerton, founder of the Pinkerton National Detective Agency, played a key role by managing Lincoln's secu ...
investigations. Warne reported back to Pinkerton about all her work when he was away from the office and they worked together, on numerous cases, during their tenure. Pinkerton constantly showed a deep trust in the work that Warne performed and acknowledges so in his memoirs. She was in charge of the Female Detective Bureau established by Pinkerton, her title being Supervisor of Women Agents. Pinkerton said to his female prospective agents:
In my service you will serve your country better than on the field. I have several female operatives. If you agree to come aboard you will go in training with the head of my female detectives, Kate Warne. She has never let me down.


Burial

Warne was buried in the Pinkerton Family Plot at
Graceland Cemetery Graceland Cemetery is a large historic garden cemetery located in the north side community area of Uptown, in the city of Chicago, Illinois, United States. Established in 1860, its main entrance is at the intersection of Clark Street and Ir ...
, Chicago, Illinois. Her gravestone is marked under the misspelled surname of "Warn", and states that she died of "congestion of the lungs." Pinkerton wanted her burial plot to be undisturbed, so he took care of the issue in his will. Warne's burial plot could never be sold.


In popular culture

Warne was depicted as a young detective in the Canadian TV series ''
The Pinkertons ''The Pinkertons'' is a Canadian Western police procedural television series which features crime cases of the Pinkerton detective agency. The show is officially licensed with the Pinkerton detective agency, and features stories based on actual ...
'', played by
Martha MacIsaac Martha MacIsaac (born October 11, 1984) is a Canadian actress. She has appeared in several feature films, including '' Superbad'' (2007), ''The Last House on the Left'' (2009), ''Dead Before Dawn'' (2012), and, most recently, ''Battle of the Sex ...
. She was also portrayed in the 2020 Wild West Stunt Show at the
High Chaparral Theme Park High Chaparral is a Wild West theme park and post-industrial museum of cultural artifacts and collectibles, located close to Värnamo, Sweden. It opened in 1966 and was founded by Bengt Erlandsson, more commonly known as "Big Bengt". The park is l ...
in Sweden. She is portrayed by Ronja Kruus, a Swedish painter and actress. There was a reference to her in ''
Archer Archery is the sport, practice, or skill of using a bow to shoot arrows.Paterson ''Encyclopaedia of Archery'' p. 17 The word comes from the Latin ''arcus'', meaning bow. Historically, archery has been used for hunting and combat. In mo ...
'' season 7 episode 5 "Bel Panto" part one. Pam Poovey is asked where the person they were supposed to be guarding was, and responds "how the hell am I supposed to know?", to which Cheryl Tunt adds "yeah, who is she? Kate Warne?". In episode 21 of ''
Xavier Riddle and the Secret Museum ''Xavier Riddle and the Secret Museum'' is an animated children's television series that premiered on November 11, 2019, on PBS Kids. The series is based on the children's book series written by Brad Meltzer, named ''Ordinary People Change the ...
'' they visit her in 1840 and meet her brother Tommy. The Scottish author C. A. Asbrey has written a series of six mysteries around a fictional female Pinkerton Detective in the 19th century. In the first book of the series ''The Innocents'' the main character, Abigail MacKay, talks of being, "lucky enough to have been trained by Kate Warne herself." In August 2021,
Amazon Studios Amazon Studios is an American television and film producer and distributor that is a subsidiary of Amazon. It specializes in developing television series and distributing and producing films. It was started in late 2010. Content is distributed th ...
acquired the distribution rights to an upcoming film produced by
Seven Bucks Productions Seven Bucks Productions is a production company involved with various platforms and mediums, credited with creating original releases for television, film, emerging technologies, and digital networks. The studio was co-created and founded by Dwa ...
, starring
Emily Blunt Emily Olivia Leah Blunt (born 23 February 1983) is a British actress. She is the recipient of several accolades, including a Golden Globe Award and a Screen Actors Guild Award, in addition to nominations for three British Academy Film Awards. ...
as Warne. In October of 2021 Archaia published a graphic novel titled ''Better Angels'', written by Jeff Jensen and illustrated by George Schall, detailing the Baltimore Plot and Warne's early life. In October, 2021, Falstaff Books published a novel titled "The Children of Menlo Park: The Thrilling Supernatural Adventures of Kate Warne, Lady Pinkerton" written by Jessica Nettles detailing the fictional adventures of Warne as a ghostly supernatural detective in the 1880s. https://www.amazon.com/Children-Menlo-Park-Jessica-Nettles/dp/1645541215/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr=


See also

*
American Civil War spies Tactical or battlefield intelligence became vital to both sides in the field during the American Civil War. Units of spies and scouts reported directly to the commanders of armies in the field. providing details on troop movements and strengths. Th ...
*
Hattie Lawton Hattie Lawton, also known as Hattie H. Lawton,Cuthbert (1949) Lincoln and the Baltimore Plot. p. 4. Hattie Lewis, Recko, Corey, A Spy for the Union: The Life and Execution of Timothy Webster (McFarland & Co., 2013), 75. "Hattie Lewis, a Pinkerton ...
*
Timothy Webster Timothy Webster (March 12, 1822 – April 29, 1862) was a British-born American lawman and soldier. He served as a Pinkerton (detective agency), Pinkerton agent and American Civil War spies, Union spy, and was the first spy in the American ...
*
Allan Pinkerton Allan J. Pinkerton (August 25, 1819 – July 1, 1884) was a Scottish cooper, abolitionist, detective, and spy, best known for creating the Pinkerton National Detective Agency in the United States and his claim to have foiled a plot in 1861 to a ...


References


Further reading

* Stashower, David, 2013. ''The Hour of Peril:The Secret Plot to Murder Lincoln before the Civil War'', Minotaur Books, New York. . * * Hannigan, Kate, 2015. ''The Detective's Assistant'', Little, Brown Books for Young Readers, New York; . Historical fiction based on the cases of Kate Warne. * * * = {{DEFAULTSORT:Warne, Kate 1833 births 1868 deaths Date of birth missing American Civil War spies Baltimore Plot Burials at Graceland Cemetery (Chicago) History of Baltimore People from Chemung County, New York People of Maryland in the American Civil War Pinkerton (detective agency) Private detectives and investigators Women in the American Civil War