Hollywood often reduced the Civil War to a story of uniformed generals on horseback. That version missed some of the most consequential figures of the era. The most dangerous people in that war sometimes wore skirts.
One guided three gunboats through a mined river and freed more than 700 people before dawn. Another read Jefferson Davis's plans while serving his dinner. And one was worth 17 officers to the enemy.
These are 20 of the most dangerous women of the Civil War.
Harriet Tubman was the Union spy who freed more than 700 people in a single night. Before the war, she had already made 13 trips along the Underground Railroad and never lost a single passenger.
When the Civil War broke out, the Union Army needed someone who knew the swamps of South Carolina better than any map. They called Harriet Tubman. She spent months recruiting local black men who knew exactly where the Confederates had planted torpedoes in the riverbed.
On the night of June 1, 1863, three gunboats traveled up the Combahee with her on board, guiding the pilots through the mines. The troops burned the supply depots, and the boats' whistles alerted the people on the plantations.
Entire families ran through the sugarcane fields carrying children and cooking pots. More than 700 people boarded the boats before dawn. Not a single Union soldier died. It was the first time in American military history that a woman planned and commanded an armed operation.
Belle Boyd was the Confederate spy who crossed a battlefield under fire. On July 4, 1861, Union soldiers stormed the Boyd family home in Martinsburg, Virginia. One of them insulted Belle's mother and tried to raise the federal flag on the porch.
The 17-year-old girl grabbed a pistol and fired. The man died. An officer investigated the case and let her go. No one wanted to put a teenage girl on trial for defending her mother.
From then on, she spent two years carrying information to the South. She hid notes in her skirt and in the lining of her hat, and listened to officers talking through a crack in the wall of her aunt's hotel room.
On May 23, 1862, in Front Royal, she discovered what the Federals were planning: to burn the bridges. She ran across an open field waving her bonnet, with bullets tearing through her dress, until she reached Stonewall Jackson's men. Jackson captured the bridges intact and won. Arrested twice, she was never hanged. She was too famous for the North to turn her into a martyr.
Emma Edmonds fought as a man and later returned as a spy. In 1861, a skinny young man named Franklin Thompson joined the 2nd Michigan Infantry Regiment. No one suspected a thing.
Franklin was Sarah Emma Edmonds, a Canadian woman who had run away from home to escape an arranged marriage and sold Bibles door-to-door dressed as a man. She served as a nurse and messenger. She was at Bull Run, the Peninsula Campaign, Antietam, and Fredericksburg.
According to the book she later wrote, she crossed Confederate lines more than once. On one occasion, she darkened her skin with silver nitrate and posed as an enslaved man working in the trenches near Yorktown.
In 1863, she came down with malaria. Going to the regimental doctor would have exposed her disguise. She disappeared from camp, treated herself, and returned to the front as a civilian nurse now wearing a skirt. Years later, the army cleared the desertion from her record and granted her a pension. She was the only woman accepted as a veteran into the Grand Army of the Republic.
Rose Greenhow was the note that changed Bull Run. In Washington, she was just a widow who threw good parties. Senators and generals sat at her table and talked too much. Rose O'Neal Greenhow listened to everything, took notes, and no one suspected a thing.

In July 1861, she found out where the Union Army planned to attack. She wrote the message in code, rolled the paper into the braided hair of a young female courier, and sent her across enemy lines. Confederate General Beauregard received the warning in time to move his troops.
Days later, he won the first Battle of Bull Run and publicly said he owed that victory to her information. Detective Allan Pinkerton began watching her house. He arrested Rose in August 1861 and kept her imprisoned with her young daughter. Even that did not stop her. From her own cell, she continued passing notes to the South. In 1862, the government gave up trying to contain her and deported her to Confederate territory.
Mary Bowser was the maid who knew how to read. At the Confederate White House in Richmond, Jefferson Davis discussed battle plans with his advisers without lowering his voice. A black woman was serving dinner right beside them. No one worried because they all assumed she could not read or write. They were wrong.
Mary Bowser had been freed by the Van Lew family and sent to study in Philadelphia. She returned to Richmond with an extraordinary memory. She only had to look at a document once.
Elizabeth Van Lew, a local abolitionist, arranged for her to work inside Davis's home. Mary read maps and orders left on the table, memorized everything, and passed it on to Van Lew, who sent the information to the North. The Union Army classified those reports as coming from a highly reliable source. When the war ended, Mary burned her records to protect those who remained. Because of that, what she did was almost lost forever.
Dr. Mary Walker was traded for 17 officers. She was the only female surgeon in the Civil War. The army refused to hire her using the same old excuse. So Mary Walker went to the front as a civilian volunteer and operated on soldiers anyway.
In 1864 in Tennessee, the Confederates captured her. She spent four months in a prison in Richmond. Then came the strange part. When negotiations began, the enemy itself demanded 17 Union officers in exchange for her. A woman who was not even on the army payroll was worth 17 ranking officers to the Confederates.
In 1865, President Andrew Johnson signed her Medal of Honor. She spent the rest of her life wearing pants and a jacket, saying that women's clothing at the time was not made for work. In 1917, Congress changed the medal's rules and removed her name from the list, claiming that a woman could not qualify. Mary refused to return the medal and wore it on her chest until she died two years later.
Pauline Cushman was the actress sentenced to hang. She was performing on stage in Louisville when two men offered her money to toast the Confederacy during the play. Pauline Cushman told the Union Secret Service about the offer and received an order: "Accept it."
She made the toast, was banned from northern theaters, and became a hero among southerners, which was exactly the plan. Using the stage as her cover, she traveled through Tennessee gathering information about Confederate troops.
In 1863, she was caught with drawings of fortifications hidden in her clothing. General Braxton Bragg ordered her tried for espionage. The sentence was death by hanging. She became ill and the execution was postponed. That was what saved her. Union troops reached the area and the Confederates retreated in a hurry, leaving the prisoner behind. After the war, northern officers began addressing her by the honorary rank of major. She made a living telling her own story in theaters across the country.
Elizabeth Van Lew was the madwoman of Richmond. She lived in a mansion just a few blocks from Jefferson Davis's office. Her neighbors called her Crazy Bet, the wealthy spinster who talked to herself in the street and walked around looking unkempt. It was all an act.
Elizabeth Van Lew was the head of the Union's largest spy network inside the Confederate capital. She worked with about a dozen collaborators. She hid prisoners who had escaped from Libby Prison in the attic of her own home. She wrote in code using invisible ink that only appeared with milk.
One of her tricks became famous: a hollow egg placed among a dozen real eggs in the basket of a courier crossing the lines. Flowers from her garden arrived fresh at General Grant's table along with the reports. Grant later said it was the best intelligence he received from Richmond during the entire war. The price came afterward. The city never forgave her. She died isolated, living on money sent by northern families.
Susie King Taylor served four years and received zero pension. She was born enslaved in Georgia and secretly learned to read in a kitchen with the help of a free neighbor. At the time, teaching a black child to read was a crime in the South.
In 1862, at age 14, Susie escaped and reached Union lines along the South Carolina coast. The officers discovered that the girl could write better than many soldiers. She joined the First South Carolina Volunteers, the first black regiment in the Union Army, and stayed with that unit for four years.

She washed clothes, cleaned rifles, and cared for the wounded as a nurse. During quiet moments, she held classes, grown soldiers learning the alphabet between one battle and the next. In 1902, she published her memoirs. It is the only written account by a black woman who served in that war. For her four years of work, she never received a single cent in pension payments. The government replied that she had only been a civilian volunteer.
Dorothea Dix was the woman who turned away attractive nurses. In 1861, with hospitals overcrowded, the Union Army appointed her superintendent of army nurses. It was the highest position a woman had ever held in the American government up to that point.
Dorothea Dix was already known for fighting with lawmakers over the treatment of people with mental illness. She refused a salary. She hired more than 3,000 nurses, and she screened them using a rule that became the subject of jokes and outrage: no young women. Only women over 30, plain-looking, wearing dark dresses with no bows, no jewelry, and no curls in their hair.
She said that a young attractive nurse in a hospital full of young men would only cause trouble. And deep down, she knew that any scandal would be used to remove all women from those hospitals. The doctors hated her stubbornness. The soldiers nicknamed her Dragon Dix. She never complained about the nickname. It was exactly the reputation she needed to hold on to the position until the end of the war.
Clara Barton was the bullet that passed through her sleeve. She was an office clerk in Washington when the war began. With no official position, no uniform, and no salary, Clara Barton gathered wagon loads of bandages and food paid for with donations and took everything to the front lines. Army doctors tried to stop her. The battlefield was no place for a woman, they said. She went anyway.
In September 1862, she arrived at Antietam with a wagon of supplies while surgeons worked by candlelight and used corn husks as bandages. It was the bloodiest day in American history. Nearly 23,000 casualties in just a few hours.
Clara stayed right in the middle of it, giving water and supporting wounded soldiers. While she was treating one soldier, a bullet passed through the sleeve of her dress and killed the young man. She never repaired the hole. After the war, she set up an office to search for missing soldiers and personally answered 63,000 letters from families who wanted to know where their sons were.
Annie Etheridge was the young woman of the Third Michigan. She was in her early 20s when she joined the Third Michigan Infantry Regiment as a vivandière, a kind of military aid with no rank and no pay. Her job was to cook and care for the wounded. Annie did much more than that.
She rode on horseback with saddlebags full of bandages hanging from the saddle and headed straight to wherever the line was breaking. In at least six battles, including Fredericksburg, Chancellorsville, and Gettysburg, she stopped in the middle of the gunfire to stop the bleeding.
Soldiers said they saw her cut off shattered fingers with field scissors while bullets whistled around her. One of them tore through her dress and wounded the man she was holding. The veterans called her Gentle Annie. In 1863, General Birney presented her with the Kearny Cross, a decoration created to honor bravery in combat. Almost no women received that medal.
Mary Chesnut was the diary that won a Pulitzer Prize. She was in the right place. The daughter of a senator, she was married to James Chesnut, a general and advisor to Jefferson Davis. When the cannons opened fire on Fort Sumter, Mary Chesnut watched the war begin from a rooftop in Charleston, a cup in her hand, and she wrote everything down.
Dinners with Davis, arguments between generals, rumors, defeats no one wanted to admit. She also wrote about what she saw in her own home. She said every planter's wife knew who the neighbors' mixed-race children were while pretending not to know about her own husband's.
An elite Southern woman putting that on paper in the middle of the war. In the 1880s, she rewrote and expanded the notebooks. She died before publishing them. The text came out in 1905, and only in 1981 did it receive a complete edition edited by historian C. Vann Woodward, which earned him the Pulitzer Prize for history. One line of hers endured: we live in a world where nothing is what it seems.
Loretta Janeta Velasquez fought disguised as a Confederate soldier and later wrote a memoir that left veterans furious. Imagine finding out that the soldier beside you on the battlefield was actually a woman. That is exactly what Loretta Janeta Velasquez claimed to have done during the American Civil War.
According to her, she dressed as a man, took the name Lieutenant Harry T. Buford, and marched into combat alongside Confederate soldiers. She said she fought in major battles such as Bull Run and Fort Donelson, always keeping her disguise intact.
In 1876, she put everything on paper and published her memoir describing in vivid detail how she fooled everyone. But not everyone liked the story. Confederate veterans were furious and tried to destroy her reputation. After all, admitting that a woman had fought alongside them without being noticed was embarrassing for both sides. To this day, historians debate what was true and what was made up. And perhaps that uncertainty is the most interesting part of the entire story.

Sarah Morgan Dawson was the diary that told the truth about the occupation of New Orleans. One of the best witnesses to the war never wanted to be remembered. Sarah Morgan was only 20 years old when New Orleans fell into Union hands in 1862. She picked up a pen and began writing everything down, day after day.
And what entries they were. Sarah wrote about Union soldiers entering homes and searching through everything. She recorded the military orders that humiliated families and the quiet way Southern women found to resist without ever raising a weapon.
Here is the part that hits hardest. She never imagined anyone would read it. It was personal, intimate. But in 1913, the diary was made public and became one of the most important sources for understanding the Reconstruction era. Think about that. The words she kept to herself now teach entire generations what it was like to live during that time.
Harriet Beecher Stowe was the woman who, according to Lincoln, may have started a war. In 1852, she wrote a book called Uncle Tom's Cabin. In its first year, it sold 300,000 copies. To give you an idea, nothing sold that much at the time. Only the Bible outsold it.
But the number is not the most impressive part. The book did something no one expected. People in the North, who had never set foot on a plantation, suddenly saw slavery up close. They felt it personally. And that changed everything.
Ten years later, when Lincoln finally met her, he is said to have made a remark that went down in history: so, this is the little woman who started this great war. And the strangest part? She never wanted to be an activist. She only wanted to write a novel, but that novel ended up changing the course of the country.
Frances Ellen Watkins Harper was the woman who traveled alone through the South. Imagine traveling alone through a land where saying too much could cost you your life. That is exactly what Frances Ellen Watkins Harper did.
Before the Civil War, she was already known for her poems and speeches against slavery, but what came afterward is the part few people talk about. When the war ended, Frances hit the road and traveled through the South completely alone. She wanted to see with her own eyes how newly freed black people were living, and what she found was not real freedom. It was fear, threats, and violence against those fighting for their rights.
She wrote letters describing everything, and those accounts appeared in newspapers at the time. Today, those pages are some of the few first-hand records of that period seen from inside black communities. In 1892, she also published Iola Leroy, one of the first novels written by a black woman in the United States.
In July 1863, Gettysburg became a battlefield, but inside a simple house, a 20-year-old young woman named Mary Virginia Wade did what she could for the Union soldiers. She baked bread and biscuits non-stop. While gunfire and cannon blasts shook the walls, she stayed in the kitchen. In two days, she made more than 15 dozen biscuits.
On the morning of July 3, a Confederate bullet passed through two wooden doors and struck her in the back. She died instantly with bread dough still in her hands. The detail few people know is that among the more than 10,000 civilians who were in the town during those three days of fighting, she was the only non-military person to die.
Gettysburg had around 50,000 casualties on both sides, and in the middle of all that destruction, the only civilian killed was a young woman who was trying to feed soldiers. When they found her body, the oven was still warm, and there were finished biscuits on the table.
In 1862, thousands of enslaved people were fleeing to Alexandria, Virginia, which was under Union control. The military government did not really know what to do with so many people. They called them contraband, a term that basically treated human beings like seized wartime property.
It was in this setting that Julia Wilbur, a New York teacher connected to the abolitionist movement, arrived to provide assistance. What she found was far worse than she had imagined. The camps where the refugees were placed were plagued by hunger, rapidly spreading disease, and cases of violence that no one wanted to admit.
Wilbur began writing letters describing everything she saw in detail, and she did not stop there. She directly confronted the city's provost marshal, the military officer responsible for maintaining local order, and reported the abuse of the refugees. This created a serious conflict with the authorities. Those letters survived and are preserved in archives in New York. Today, researchers consider these documents the most complete source available on what was happening inside those camps in Alexandria.
Bridget Divers was the Irish woman who shamed fleeing soldiers. She followed the 1st Michigan Cavalry during the Civil War as a vivandière, a civilian who accompanied troops carrying water, food, and supplies. But she did much more than that.
Regimental officers recorded one episode that says everything about who she was. In the middle of a battle, when soldiers panicked and began retreating, Bridget grabbed the unit's flag, turned her horse toward the enemy, and shouted a single word: "Shame!" The men stopped and returned to the battle line.
During the day, she treated the wounded as an improvised nurse. At night, she transported supplies along dangerous routes. She accompanied the regiment from Virginia to North Carolina, taking part in battles that many soldiers did not survive.
When the war ended, she did not go home. She continued serving as an army laundress during campaigns in the American West against Native tribes. Bridget lived within the army until the end. She died in 1916 at age 76 with no rank, no combat pension, and no official recognition.